Apropos of my last boost (https://post.lurk.org/@liza/109621185749177937), as well as Chris Long's recent suggestion (https://hcommons.social/@cplong/109604628817946536), I've just logged into Feedly for the first time in eons. 19 of the feeds I had been following are now not-found, and another 18 have been inactive for a period of a year or longer. I'm doing some significant pruning, but also looking for new feeds to add. If the move out of Twitter has got you contemplating blogging again, send me a link!
A group of people have been posting with the tag #FeedReaderFriday with some people and resources for just this sort of effort.
Given limited instance search, this link may be better: ial/tags/FeedReaderFriday
I’ve also recently run across: g/
If you’re repopulating a feed reader, I’ve got a long list in which folks may find some interesting tidbits hiding: Potentially easier if your reader supports OPML.