I have found this article https://www.tecmint.com/best-rss-feed-readers-for-linux/ and has some nice self-hosted options.

From a desktop app's point of view, I have tried liferea for a while and liked it a lot.

I'm not using anymore though, because the websites I used to follow went behind captcha mechanism(s) and cannot fetch their feed any longer which saddens me just by thinking about it.