Subreddit Finder

The communities where your people already are — and what to post there without getting banned.

Reddit is a thousand small towns wearing one trench coat — the platform matters far less than which specific communities you show up in. Picking wrong wastes months: too broad and you're shouting into r/Entrepreneur with two million lurkers, too dead and nobody answers. This finder maps your topic to the subreddits where your audience actually talks, with a one-line read on each and what kind of post belongs there. One honesty note: it deliberately doesn't quote subscriber counts — those drift constantly, so verify current size on the subreddit itself.

How to pick subreddits worth your time

  • Niche beats big. A 40k-member subreddit about your exact problem out-converts a 2M-member general one every time — smaller rooms have higher signal, real conversations, and mods who allow substance.
  • Read the rules before your first comment, not after your first removal. Half of business-adjacent subreddits ban self-promotion outright; many others allow it only in weekly threads. The sidebar is the law.
  • Check the asking ratio: scan the top posts this month — how many are questions? Communities where people ask for recommendations are where buyers live; communities that only share news are audiences, not markets.
  • Lurk for a week, contribute for three, mention your product only when asked or clearly relevant — with disclosure. Reddit rewards regulars and torches drive-by marketers (our founder's banned account can testify).
  • Watch the adjacent subreddits in the sidebar. The community you found is rarely the only one — the sidebar's “related communities” list is the best free market map on the internet.

Example output

Your topic: Meal-prep delivery for new parents. Goal: find customers.

WHERE YOUR BUYERS ASK
r/NewParents — recommendation questions weekly (“how do you even cook now?”); answer genuinely, mention the service only when asked
r/beyondthebump — post-partum practical threads; high trust, strict on ads — participate first
r/workingmoms — time-poverty is the core topic; food logistics threads recur

WHERE THE TOPIC LIVES
r/MealPrepSunday — the craft itself; good for content, wrong for selling
r/EatCheapAndHealthy — budget angle; useful for research on objections

WORTH WATCHING
r/daddit — under-served on food logistics; recommendation threads get few answers, which is an opening

(Verify each community's current size and rules on Reddit — counts drift, rules rule.)

Frequently asked questions

What is a subreddit, exactly?
A self-contained community on Reddit with its own topic, rules and moderators — r/NewParents and r/MealPrepSunday are different towns with different customs. You subscribe to subreddits, not to Reddit as a whole, which is why picking the right ones is the entire game.
How do I find subreddits beyond this tool?
Three ways: Reddit's own search with your problem phrased as a question, the “related communities” sidebar of any subreddit you already know, and searching Google for site:reddit.com plus your topic — the subreddits that rank are the active ones.
Can I promote my product on Reddit?
Carefully and rarely. Answer the question first, disclose that it's your product always, keep 90% of your account activity non-promotional, and never automate posting. Our founder got an account banned learning this — it's literally why our product drafts replies but never posts them.
Why is this free — what's the catch?
No catch and no signup. This tool is funded by EaseClaw, an AI agent that finds people publicly asking for what you sell and drafts your replies. If the free tool is useful, some people try the $9 trial. That's the whole business model.

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