Noncredibledefence defo is set up here, they pop up on /all from time to time.

You could try these fediverse search engines:

• https://browse.feddit.de/
• https://sub.rehab/ (allows filtering on official and unofficial communities)

Try looking https://lemmyverse.net/

The Voyager app has a built in "migrate subreddits" button. It's not great but it works.

I primarily use lemmyverse.net with related terms till I find something. Otherwise I might create it myself till I can hand it off to someone.

Here's the guide from !communityPromo@lemmy.ca:

A great way to find lesser known communities is to look at the /communities page on an instance. For example: https://lemmy.ca/communities

🌐 Instances to look through

• pangora.social (NEW): Great way to find instances related to a particular topic. This is also great for picking an instance when first making an account/moving accounts.
• awesome-lemmy-instances: not that organized, but it

🔎 Search pages

• https://lemmyverse.net/communities
• https://browse.feddit.de/ (run by feddit.de)

🔥 Apps and Browser Extensions

• Instance Assistant: Browser extension with tools to help you redirect & search for communities
• Voyager Migrator: Tool to help you migrate Subreddits
• Other apps: https://lemmyapps.netlify.app/

🙌 Communities for discovering new communities:

• !communitypromo@lemmy.ca: You're here right now
• !trendingcommunities@feddit.nl: Daily posts with the trending communities from across the threadiverse
• !newcommunities@lemmy.world: Find out about new communities

Here are some other communities, some of which are less active:

• !wowthislemmyexists@lemmy.ca
• !lemmy411@lemmy.ca
• !findacommunity@lemmy.ml

Remember, you can also post questions about finding new communities right here!

👽 Coming from Reddit?

• sub.rehab: You can sort by official replacements & sister communities
• redditmigration.com: List from the migration
• quippd.com: Another list created by a user during the migration

lemmy.world/c/noncredibledefense

Voyager client have a feature that provide you recommendation for communities similar to subs you follow on reddit

Do a search in All for the keywords for the community name. Chances are you are either not going to find some of them or find multiple ones on several Lemmy instances. If you find several, subscribe to all and see which one is the most active, if you find none, consider starting one yourself.