There are lists that provide the equivalent communities to Reddit subs. It should aid discovery and help provide a more seamless user experience for those who have yet to make the jump, so consider adding any communities that you start:
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Looks like the sub.rehab project is no longer active.
This repository was archived by the owner on Mar 7, 2025. It is now read-only.
A “spiritual successor” to this project has been created by @rglullis@communick.news over at https://fediverser.network/communities
Nice! Good find.