@octade @Raccoon lmao mastodongs are at it again
https://blog.freespeechextremist.com/blog/fediunblock.html

Probably half of the list is just "waaah I don't like you saying the nigger word", as usual.
If you do want to block for that sort of reason (or any other particular reason), https://fba.ryona.agency [maybe down currently] may be of use, though I've never tried the second search. Or http://demo.fedilist.com/, with some good keywords.

Alternately, attached is a list that I have saved (for later perusal, which I still haven't actually done) as "spambots", but IIRC it was intended to be a list of porn-posting bots, specifically... I think I got it from @jeffcliff?