Shameless plug of my own RSS reader side project: https://github.com/msurdi/feedo.

It's not great nor complete, but is very simple and does the basic thing, it has no ads and there is no risk somebody will turn it off or push it in commercial ways.

I built it about a month ago over the weekend and haven't looked back to other popular services.

If you're a developer, making an RSS reader you like seems like a very nice side project to try out new tools, frameworks, etc... more useful than a TODO list and also very simple to build.