I use feeder installed via Fdroid. It sends me notifications that send me straight to the content. I rarely have to actually open the app. No complaints!

I use Newsblur, it’s a web site and will fetch feeds even if my computer is offline.

I have been pretty happy with Read You

I used feeder before that. Feeder is fine and may even have more options, but Read You has that perfect layout and text formatting…

I use quiterss on my linux desktop. Its already in the repos on debian and works great for me. I have extremely minimalistic requirements tho, so might not be for you if you want a shiny UI. It has tagging, custom keyword filtering, folders, notifications. All i need.

I use NewsBoat on Linux, but it’s a terminal app and not for everybody. On Android I use CapyReader, and IMHO it’s quite nice.

I use Thunderbird and Read You