I stopped using RSS altogether when Google killed Reader.
Tiny Tiny RSS: https://tt-rss.org/gitlab/explore
SelfOSS: http://selfoss.aditu.de/
Both include mobile apps and are open source with web based interfaces and JSON based API's to let you implement your own clients.
I know that for me having an archive of the feeds is pretty darn important.
Mostly, I bookmark and archive important articles, and use a search engine to find more general more none specific info