The #TwitterMigration needs to spread out to other #Fediverse platforms and respective servers. Those receiving the bulk of registrations are going to be stretched out [time and financially].
I think this list/site is a good landing page for the #Fediverse - fediverse.info/explore/project…
If I may suggest, re: project list, maybe using familiar words as such “Twitter-like”, “FB-like”, “Goodreads-like” can be helpful too, instead of just “microblogging” (which more likely only us techies understand).