Newsblur https://github.com/samuelclay/NewsBlur or hosted https://newsblur.com/

You can use the newsblur API in newsboat as well.

Not exactly a reader, but I use rss2email[0]. It’s pretty easy to setup, has optional HTML/CSS support, and I run a cron job to pull feeds daily. I like being able to browse through articles wherever I can get email without having to rely on a separate, proprietary service or self-hosting.

[0] https://github.com/rss2email/rss2email

The Firefox-recommended reader is quite good:

https://addons.mozilla.org/en-GB/firefox/addon/feedbroreader...

Feeder (https://f-droid.org/packages/com.nononsenseapps.feeder)

NetNewsWire for macOS/iOS[0]. It was the best RSS reader for Mac OS X in the far past and they have now revived it and made it open source. I particularly like that you can sync feeds via iCloud or self-hosted instead of an external service.

[0] https://github.com/Ranchero-Software/NetNewsWire

Reeder on mac and iOS: https://www.reederapp.com/

Inoreader: https://www.inoreader.com/

I made https://readr.nz/ which works pretty well for me. Source code is here https://github.com/fallaciousreasoning/progrssive

I use (and made) https://sumi.news - RSS, newsletter, and Twitter support. No subscription. Clean chronological feed, and a per-feed recent entry view.

Feedly. Does everything that Google Reader did, as far as I can tell.

My own:

https://i.imgur.com/xTftp6J.png

It's cranky, and feature-lite, but is tailored for how I consume RSS.

I use Feeder.

https://feeder.co/

Miniflux

https://miniflux.app/

newsboat

I use Maubot with an RSS plugin to send new feed entries to Matrix

QuiteRSS on desktop. Was previously using Liferea.

Flym on Android. Free. No ads.

Reeder on iOS

Reeder

InfoReader