@josmac By "feeds" you mean the local and federated timelines right?
Your "home" is where any hashtags or people you follow posts end up. You need to search for and follow hashtags, and then people you find interesting from those (or people recommended to you from others)
#Fedilab by @apps offers a list of followed hashtags, management and reading becomes easier from there.
Also, you have lists. You can e.g. create one for "must read everything", comprising only a few select accounts; another one for "read daily"; and put the rest elsewhere.
List management on the Mastodon web frontend is tedious (probably also on most mobile clients), but https://acbeers.github.io/mastodonlm/ by @acbeers allows you to shift people between lists very quickly.
CuriousHeart
Eric Dannewitz
Pragmatic Teams