I adore Button’s Blackest Crow. Normally don’t learn from books but I’ll check that round peak book out. I’m learning Clawhammer right now and a little bit of two finger which works well coming from finger style guitar.
Fairfield is wicked too! I’m drawn to styles that feel “chunky” if that makes sense. Nora Brown has “Jenny Put the Kettle On and it’s so sweet to listen to with that lurching nylon tone.
Also old, cheap banjos rule.