3rd Party YouTube or Feedly RSS Reader Apps?

I’m looking to pick up an XBox One S to replace the “Smart” functionality of my terrible 2015 Sony AndroidTV. I’ve recently deleted my Google account and moved all my YouTube subsciptions over to my Feedly RSS feed which works great for all of my other devices but the TV experience still needs to get figured out. Are there any apps available on the XBox that will either let me access my Feedly RSS feed or a 3rd party YouTube app that will let me “subscribe” (for lack of a better term) to a channel without a Google account?