Flym (OSS, Android) allows you to search for feeds. I'm sure there are others that do too. As for social, the share button is always there. If you want Faceboo

Flym (OSS, Android) allows you to search for feeds. I'm sure there are others that do too. As for social, the share button is always there. If you want Facebook, why not just use Facebook? You can declare RSS a failure when sites stop offering it.