Sturghill simpson is a great listen his newest album isn’t country more of a blues but he is awesome. Cody Johnson is a great artist he has 8 or so albums so you can kill a couple days listening to them.
Whitey Morgan and the 78's are pretty well known but damn good. Saw them in concert recently and they are great (more outlaw country though). Otherwise Chris Knight, Whiskey Myers, Reckless Kelly, Cross Canadian Ragweed, Cody Canada, Alex Williams, Randy Rogers Band, Robert Earl Keen, Radney Foster the list goes on. Right in my wheelhouse with this post!
Tim Montana (Butte)
Skrizzly Adams (came to play our little town bar one night, not bad)
Tenille Townes (Canadian)
Colter Wall (Swift Current)
Samantha Fish (rocks)
Shakey Graves (good stuff)
Nathaniel Rateliff (good live stuff on youtube)
Chris Stapleton (more mainstream)
Gary Clark Jr. (not country)