Techr/ArtificialInteligence
AI Agents & Automation
The insight
"People are moving from "What is AI?" to "How do I build AI Agents?"."
Marketing angle
Position your tool as the "infrastructure" for the next wave of AI builders.
Free trend feed, no signup
Filter the feed by niche to see what's trending on Reddit, which subreddit it lives in, and the angle that fits.
"People are moving from "What is AI?" to "How do I build AI Agents?"."
Position your tool as the "infrastructure" for the next wave of AI builders.
"Fatigue with cold outreach bots is at an all-time high."
Share personal stories of manual sales wins. Authenticity is the new currency.
"Rising pushback against "hustle culture" and screen addiction."
Market your product as a time-saver that gives people their life back, not just "productivity".
"Privacy concerns are driving devs to run models on their own hardware."
Highlight privacy-first features and offline capabilities if applicable.
"Gamers are craving social experiences without the toxicity of competitive shooters."
Emphasize community and collaboration features in your messaging.
"More devs are building small projects to sell quickly rather than IPO."
Offer tools that speed up the "build to sell" lifecycle.
Enter your website and MediaFast picks the subreddits for your product from 4,200+, then shows the threads where a reply fits.
Short answer
Three sources, three clocks. The fast one catches threads, the slow ones tell you what is worth your week.
Signal in hoursPosts gaining upvotes and comments fast, before they reach Hot. Free and live.
Signal in weeksReddit's free business dashboard. Charts conversation volume for a keyword and lists the communities talking.
Signal in monthsWeekly visitors and contributions, logged over time. A small sub climbing every week means a topic is forming.
Fastest-growing subreddits
Reddit does not publish a growth chart, so you build your own. Two numbers matter: growth relative to size, and people added.
Weekly growth % = (this week − last week) ÷ last week × 100
Run it on visitors and on contributions separately. When contributions grow faster than visitors, the community is getting more active.
What a subreddit page shows since September 2025
Illustrative numbers. Old "fastest-growing subreddits" lists built on member counts are measuring age, not momentum. Source on the metric change: Social Samosa, checked October 2026
To log the numbers without a spreadsheet, use the free Subreddit Tracker or check one sub at a time in the Subreddits Analyzer.
Rising subreddits, up close
Four things to check on any post in the Rising queue before you spend time on a reply.
Which tool are you all using for this now that the old one shut down?4
Tried three alternatives this week, none of them handle the export step. Curious what everyone switched to...
Reddit trend analysis
Most trends follow the same curve. The window that pays off is the rising stage, busy but not yet crowded.
| Trend type | Where it shows | Lifespan | Your move |
|---|---|---|---|
| Meme or format | Big general subs and r/popular | Hours to a few days | Usually skipUsually skip it. Brands joining memes late read as try-hard. |
| News spike | News subs, then niche subs | A few days | Worth itAnswer questions in the comments. Do not drop a promo post. |
| Topic trend | Several niche subs, a Pro Trends keyword climbing | Weeks to months | Worth itWrite the most useful post on it and share it in the 2 or 3 subs that fit. |
| Community shift | A new or small sub growing week after week | Months | Worth itJoin early, contribute for a few weeks, then you are a known name. |
| Problem trend | The same complaint across many comment threads | Ongoing until someone fixes it | Worth itProduct research gold. Reply with real fixes, build what people keep asking for. |
Lifespans are rules of thumb from watching niche subs, not measured averages.
Signal lookup
Most subreddit trends start as one of these patterns. Find yours, then read the move.
| Signal | What it means | Your move | Verdict |
|---|---|---|---|
Same question asked 3+ times in a week | What it meansAn unmet need nobody has answered well | Your moveWrite the definitive answer. Link back only if the sub allows it. | Act |
Rising post with more comments than upvotes | What it meansA debate people care about | Your moveAdd one specific data point early, before the thread gets crowded. | Act |
A small sub's visitors climb 4 weeks in a row | What it meansA community is forming | Your moveJoin now and contribute before you ever mention a product. | Act |
Pro Trends keyword rising across many subs | What it meansThe topic is going broad | Your movePublish your guide now, before larger brands write theirs. | Act |
Contributions up, visitors flat | What it meansCore members are getting more active | Your moveGood week for a detailed post or an AMA-style thread. | Act |
Visitors up, contributions flat | What it meansLurker traffic, often from search | Your moveWrite posts that answer search-style questions in the title. | Act |
Mods add a megathread for a topic | What it meansThe topic is saturated in that sub | Your moveStop standalone posts. Contribute inside the megathread. | Hold |
High upvotes, almost no comments | What it meansPassive interest, often a meme | Your moveNot worth a brand post. Move on. | Hold |
Illustrative scenarios, not client stories. Same four steps each time: signal, check, move, watch.
r/LocalLLaMA
r/SaaS
r/simplelivingDaily routine
Five steps, about a minute each. Same time daily and the patterns jump out within two weeks.
Reddit Pro Trends
Pro Trends is free and uses Reddit's own data. It still leaves gaps the Rising sort and a weekly log fill.
| Spec | Reddit Pro Trends | Rising sort | Weekly subreddit log |
|---|---|---|---|
| Price | Free with a Reddit Pro business account | Free, any account or none | Free, a spreadsheet |
| Measures | Conversation volume for a keyword across Reddit | Posts gaining upvotes and comments fast in one sub | Weekly visitors and contributions per sub |
| History | Date filter goes back about 3 months | None, it is a live queue | As long as you keep logging |
| Coverage | Around 100,000 tracked keywords at launch | Any subreddit you open | Any subreddit you add to the sheet |
| Best for | Sizing a topic and finding where it is discussed | Catching a thread before it hits Hot | Spotting the fastest-growing subreddits |
| Blind spot | Does not tell you which thread to answer today | Noisy, and gone by tomorrow | Manual, slow to show a change |
Once you know the topic and the sub, the slow part is finding the threads worth a reply. MediaFast watches the communities you pick and surfaces threads where your answer fits. For a side-by-side, see the Reddit Pro alternative breakdown.
Reddit in 2026
More people read Reddit every quarter, and more of them arrive without an account. Every number links to its source.
130.3MDaily active uniquesQ2 2026, up 18% year over yearSource 514.6MWeekly active uniquesQ2 2026, up 24% year over yearSource 
77.1MInternational daily uniquesUp 28%, versus 53.2M in the US (up 6%)Source 
+27%Logged-out usersReaders without an account, vs +7% logged inSource A 7-minute overview from Goat Agency on how communities and trending signals shape what brands can do on Reddit.
Compare sources
Each answers a different question: what people want, how many want it, and how fast it is moving.
What people discuss, argue about, and recommend inside communities
Relative search interest for a term over time
What is being posted and shared right now
Sitewide starting points: r/popular and r/TrendingReddits (Hootsuite, checked October 2026). For a niche, Rising inside the right subs beats both.
Mistakes
Most trend posts fail on the same few mistakes. Mods remove them, or the sub downvotes them in the first hour.
Spotting the trend is step one. These cover picking the sub, the words, and the hour.
Subreddit Tracker: Watch a list of communities and see how their activity moves week to week.Subreddits Analyzer: Check size, activity, and rules of any subreddit before you post there.
Find My Subreddits: Describe your product and get the communities your buyers already use.Reddit Keyword Research: Turn a trending topic into the phrases people type in Reddit threads.
Best Time to Post: Once you have the thread and the angle, pick the hour it gets seen.
Reddit Pro Alternative: What Reddit Pro does well, and what you still have to do by hand.
Content Idea Generator: Turn a trend into a list of post ideas.
Opportunity Finder: Find threads where your answer fits.Sentiment Analyzer: See how a community feels about a topic.Enter your website and MediaFast builds a sample Reddit plan: which subreddits to watch, which threads to reply under, and what to post when.
Free live demo with your own website, no signup.
Real founders, real posts
Trending subreddits, Reddit Pro Trends, Rising vs Hot, and how to use what you find.
Reddit trends are topics, questions, and communities that are picking up activity faster than usual. They show up in three places: posts moving up the Rising sort inside a subreddit, keywords climbing in Reddit Pro Trends, and subreddits whose weekly visitors and contributions keep growing. A useful trend lasts at least a week. A single viral post is not a trend.
For the whole site, r/popular shows what is big across Reddit today. For your niche, open the subreddits you care about and switch the sort to Rising, which shows posts gaining upvotes and comments quickly. For keyword-level trend data, Reddit Pro Trends charts conversation volume and lists the communities discussing a term. The feed at the top of this page groups current trending topics by niche.
Reddit does not publish a fastest-growing list, and since September 2025 subreddit pages show weekly visitors and contributions instead of member counts. Any list you find is someone's own tracking. AI communities such as r/LocalLLaMA and r/ArtificialInteligence are among the most active niche groups in our own subreddit data. To find the fastest growers in your niche, log visitors and contributions for a watchlist every week and compare the percentage change.
Start from the topic, not the sub. Search a keyword in Reddit Pro Trends to see which communities are discussing it, then add the smaller ones to a watchlist. Check each one weekly: weekly visitors, weekly contributions, and whether its Rising tab is busy. Rising subreddits show steady week-over-week growth in contributions, not just visitors.
Reddit Pro Trends is a tab inside Reddit Pro, Reddit's free toolkit for businesses. It launched in January 2025 with around 100,000 tracked keywords. You get a conversation volume chart, the communities talking about a keyword, and a feed of the posts behind it. Signing up asks for your business name, website, category, and employee count, and approval is instant according to Practical Ecommerce.
Yes for sizing a topic, since it is free and uses Reddit's own data. Its limits: the date filter only goes back about three months, the keyword list is fixed, and it does not tell you which thread to answer today or whether a sub allows promotion. Most people pair it with the Rising sort for live threads and a simple weekly log of subreddit activity.
Hot is the default sort and favors strong engagement over the last few hours. Rising shows posts gaining upvotes and comments quickly, often before they reach Hot. Trending is not a sort. It describes a topic whose activity keeps growing over days or weeks. For marketing, a trend matters more than a hot post because it gives you time to write something good.
It depends on the type. Memes and formats burn out in hours or days. News spikes last a few days. Topic trends in tech and business subs often run for weeks or months because the questions need depth. Treat these as rules of thumb and let a topic run for a week before you build content around it.
Yes. Reddit threads often show the exact questions people ask before anyone writes a good answer to them, and Google shows Reddit results for many of those questions. Use the Rising sort and repeated questions to pick topics, then check Google Trends or a keyword tool to confirm search demand before you write.
Bring something new: your own numbers, a test you ran, a mistake you made. Answer in comments for a while before you start a thread. Read each subreddit's rules, and if the sub has a megathread for the topic, post inside it. A good trend post would still be useful to someone who never heard of the trend.
Yes, it is one of the best uses. When the same complaint or the same question about a missing feature shows up across several threads, that is a problem trend. Log the exact wording people use, how often it repeats, and which subs it appears in. That list tells you what to build and how to describe it.
