I routinely listen to the ones listed (Turnpike, Reckless Kelly, Childers, Jinks, ect.) and add in a few more that I think are worth listening.
Justin Wells
John Moreland
Jason Eady
Sunny Sweeney
Aaron Lewis (don't hate me)
Miranda Lambert (seriously don't hate me but she's got some stuff not on the radio that'll hit you right in the feels)
Margo Price
Whiskey Myers
Ward Davis
Got to give a shout to some Louisiana guys too. Some made it bigger than others.
Jaryd Lane
Dustin Sonnier
Frank Foster
Kristen Foreman
And my friend Mike Dean who has written IMO the two best hunting songs. Woods and Blood on the Acorns.