I recently discovered that FreshRSS has a built-in xPath parser/webscrapper[1] so you can actually subscribe to any website, even if it doesn't have an actual feed.
It's not straightforward to use because of the lack of a test/debug interface, but its worth the effort to set it up!
Self-hosted FreshRSS + NetNewsWire on Mac and iOS/iPadOS is my combo of choice, works great. After Reader died I migrated to Feedly for a while, but self-hosting the backend and not having ads injected + being able to debug and properly manage feeds is way nicer.
Just about every website and service I use has feeds.
People/geeks are rediscovering RSS.
I think this might be the golden age of RSS.