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Free tool

Subreddit Finder

Find communities where people already talk about the problem your product solves.

Product or audience
Describe what you offer and who it helps. A specific audience makes a better starting point.
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The examples below explain the workflow and how to read a result. They are illustrative, not a report generated from the input above.

Sample output

A ranked list, with the rules already read.

Each match shows how big it is, how busy it is, why it fits, and whether promo is allowed.

r/productivityPromo OK
1.8M members · ~45 posts/day · asks for tools weekly.
r/NotionComment first
380K members · ~20 posts/day · link drops removed, answers welcome.
r/SaaSPromo OK
210K members · ~30 posts/day · self-promo allowed Saturdays.
How to judge a match

Which subreddits are worth posting in?

A big subreddit is not automatically a good one. Check these five things first. They matter more than member count.

A clear self-promo rule

Look for a rule that names when and where you can mention your product. A vague "no spam" line tells you nothing. A specific rule means mods enforce it, and you can follow it.

Recent, real questions

Read the last week of posts, not the whole history. You want people asking for a fix like yours now, not a thread from last year.

Mods who show up

A sub that removes off-topic promo looks strict. It usually means real posts get seen. A sub with no mods at all is often just as bad.

Audience overlap, not just size

A small subreddit full of your exact buyer beats a huge general one. In the big one, your post is buried within the hour.

Karma or age gates you can clear

Some subs block brand-new accounts on sight. Check the minimum before you plan a launch post there.

How it works

Three steps, from a phrase to a ranked list.

1

Your product

One sentence or your site link. No keyword list to fill in.

2

We match communities

By topic, and by who posts there. Not just the obvious name.

3

You get a ranked list

Each one arrives with its self-promo rule already checked.

What you get

Five columns per match.

Subreddit

The community handle, r/{name}, linked so you can open it.

Members

How big the audience is, so you can weigh reach against noise.

Activity

Posts per day. A live community, not a dead one.

Fit

Why it matches your product, in one line.

Promo

The self-promo rule, so you know where a link is safe.

Once you've picked a subreddit

Bavior takes the next step for you.

Finding the right subreddit answers where. Inside it, Bavior reads the community's current rules and finds the threads where people are asking to buy. It drafts a reply in that sub's own style. Nothing goes out until you approve it.

What this finder can't do

Describe the people you help and the problem they discuss. Search both the product category and the work around it; a scheduling product may fit appointment workflows better than a broad startup forum. Compare recent relevant questions, reply quality and current posting rules. Keep the reason for each candidate; subscriber count alone does not show whether your customers participate.

How do I shortlist communities for my product?

Describe the people you help and the problem they discuss. Search both the product category and the work around it; a scheduling product may fit appointment workflows better than a broad startup forum. Compare recent relevant questions, reply quality and current posting rules. Keep the reason for each candidate; subscriber count alone does not show whether your customers participate.

FAQ

Frequently asked questions.

Does a relevant community allow promotion?

Relevance and permission are separate. Read current rules and pinned moderator posts before participating; a good audience match is not permission to post an advertisement.

Which subreddits should I post my product in?

Start with subs where someone asks for a fix like yours at least once a week. Look for a self-promo rule that is specific rather than vague. And check that your buyer is the typical poster, not just that the sub is big.

How do I decide whether a suggested subreddit fits?

Read recent threads and the rules. Look for people discussing the problem your product solves, not just a matching community name. Confirm that your planned contribution is welcome.

Do I need to give it keywords?

No. Give it a phrase or your URL, and it works out the communities and the rules for you.

What happens after I find the subreddits?

Bavior takes over. It finds the buying-intent threads inside them, drafts native replies, and posts on your approval.

Find the community behind your customer.

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