@Griffith Soapbox/Rebased is ultimately just a Pleroma fork, and has only 1 dude to maintain it (and he's focused on Nostr)

So basically choices are
Pleroma (buggy)
Misskey (apparently potentially very buggy)
Mitra (okay, but new and not widely adopted/tested, plus I don't know anything about it)
Mastodon (not as feature-rich)

Each thing has its drawbacks.

And also the Pleroma follow bug has apparently been fixed, but not pushed to release yet.