Home/Free tools/Subreddit finder
Free tool

Free Subreddit Finder — Find Where to Post on Reddit

Bavior matches your product or site to the subreddits where people already discuss that problem. Each match shows size, activity, and the self-promo rule. Included with your account.

Free trial · Cancel anytime
What it does

A subreddit finder matches your product or site to the communities already talking about that problem. It then checks each one for size, activity, and the self-promo rule. That tells you whether a post is even welcome there. The best match is rarely the biggest subreddit. It is the one where people who sound like your buyer ask questions every week.

Subreddit finder · inside Bavior
Read-only: nothing gets posted. This is the first step of Bavior's Reddit lead generation, the part that maps your communities. It is included with any Bavior account, and a first ranked list takes a couple of minutes.
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

It finds the right rooms. It cannot tell you what to say once you are in one. A perfect match still flops when the post reads like an ad, so write for the readers rather than for the ranking.

Pricing

One agent. Three sizes.

Every plan runs the full loop — plan, execute, verify, replan. You scale up the products, the volume, and the firepower.

Starter

Start with one product, run the full growth loop
$79.17/mo
billed $950 per year
  • 1 product
  • 10 active subreddits monitored
  • 1 brand monitor
  • 1 competitor monitor
  • 50 standard post suggestions / month
  • 3 strategy plans generated or revised / month
  • 8 reports generated or revised / month
  • Custom agent requests — ×2 allowance
  • Email support
  • Managed posting — purchased separately
Start free trial
Most popular

Growth

For small teams and early products
$159.17/mo
billed $1,910 per year
  • 3 products
  • 30 active subreddits monitored
  • 2 brand monitors
  • 3 competitor monitors
  • 150 standard post suggestions / month
  • 10 strategy plans generated or revised / month
  • 20 reports generated or revised / month
  • Custom agent requests — ×5 allowance
  • Email support
  • Managed posting — purchased separately
Start free trial
A fraction of an agency retainer. Works nights and weekends.

Pro

For systematic, always-on operations
$319.17/mo
billed $3,830 per year
  • 5 products
  • 100 active subreddits monitored
  • 5 brand monitors
  • 5 competitor monitors
  • 400 standard post suggestions / month
  • 30 strategy plans generated or revised / month
  • 60 reports generated or revised / month
  • Custom agent requests — ×10 allowance
  • Priority support
  • Managed posting — purchased separately
Start free trial
Cancel anytime
FAQ

Frequently asked questions.

How do I find subreddits similar to one I already post in?

The finder takes a product, a topic, or a URL, not a subreddit name. Describe what your current community is about, and it returns ranked matches with members, posts per day, fit, and the self-promo rule. To put two named subreddits side by side, use Bavior's subreddit comparison tool.

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.

Is it free?

It is included with any Bavior account, free trial included. Finding threads and posting inside those subreddits is what Bavior does next.

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.

Get started today

Find where your buyers already post.
Then let Bavior do the posting.

Set a goal tonight. Wake up to a plan, drafts waiting for approval, and a report of what happened.

Free trialYou approve every postCancel anytime
Start free trial