A shout out for Tiny Tiny RSS[1] for a self-hosted feed reader. I used a heavily modified fork from years ago but the current version looks pretty good.
(I made a couple of really simple contributions back in the day but decided maintaining my own fork was the easy path. The maintainer has a reputation for being a bit prickly to deal with. He wasn't uncivil or anything, but it was clearly his project and that's just fine.)
I used to use TT-RSS years ago, but switched to FreshRSS which is much more active and feature full - https://github.com/FreshRSS/FreshRSS