Old Crow, Devil Makes Three, Trampled By Turtles, Flatt nd Scruggs, Steeldrivers, Infamous String Dusters, Yonder Mountain String Band, Hackensaw Boys. . . There are a few to check out Cotty. Guys on TOO turned me onto a few of them. Clicked their stations on iHeart radio and found a few more.
Carolina Chocolate Drops are a different sound. Not sure I would call them bluegrass though. There is always Mumford and Son and a handful of others as well. Hank III isn't truly bluegrass in my eyes but you might like him. He is more a cross between Kid Rock, Pantera, and his grandpa in my mind. He is musically confused. Lol