https://libredirect.github.io/ has a good list even if you don't use the extension. If you do use the extension, take a second to click the ping button and move to a faster instance, a lot of my defaults were slow.
Also this list: https://github.com/mendel5/alternative-front-ends
I selfhost a copy of Commafeed since it matches my workflow back when Google Reader existed.
It's browser based so it syncs my read status, has categories, article focused, and some basic content inlining.
I find RSS works best for me when it's some content that I want to see everything for. If a source I follow only updates once a year I want to make sure I don't miss it. Or if I want to ignore a source for a month and come back to it later I can do that too.
The rss definition is on the videos page, so if you paste in the youtube/c/channelname/videos page to the RSS reader it should be able to find it.
If it's really old, the direct feeds are https://www.youtube.com/feeds/videos.xml?channel_id=[id] but you have to hunt down a real channel id and not just a url slug.
That's strange, but it does have a redirect to proxigram feature once installed.