I would love to see Larkin Poe (they’ve appeared at Merlefest before as the Lovell Sisters, one married and has left the band). They can and do play all kinds of music.
Hayde Bluegrass Orchestra. If imitation is the sincerest for of flattery, these Norwegians will charm with their tasteful renditions of Americana music. Rebekka Nilsson is the vocalist. Netflix series Lost Ollie features their version of “Dream”, the old Everly Brothers hit.
Just two of many superb, under-the-radar groups around these days!