After a couple of months of trying alternatives, I also ended up in InoReader. Closest contender was NewsBlur, but it had problems with some of my feeds (Yahoo Pipes feeds didn't work well, if I remember correctly). This was many moons ago. But since I'm a happy user I didn't consider switching to something else.

I think, for some cases, it would make sense for an instance to host just a single community or a "family" of communities. programming.dev is a good example of this. Hopefully this will happen organically (communities will consolidate in instances that make the most sense for them).