Jason Isbell is so freaking good. My wife and I went to see him at a small local venue a year or two ago. It was a phenomenal show and he can play guitar like a beast. It's funny because the song "Cover Me Up" that kids these days associate with Morgan Wallen was actually written and originally performed by Jason. His original version is so much better. You should check out Jason and his bands cover of the song Honeysuckle Blue. So good! I'd see Jason live again in a heartbeat. His (now ex wife) Amanda Shires is pretty great too except, she isn't a Steely Dan fan. If you like Jason, you should also check out Anderson East. I hope you find some AJ stuff that you like. It's definitely sad about Jim, I never quite realized just how amazing he was until I saw this show.