R174
Black Label Society as suggested by R176
Wolfmother, Australian hard rock band with Led Zeppelin and Black Sabbath influences
Left Lane Cruiser, American blues rock band with some country influences
Blackberry Smoke, Southern rock band with definite Lynyrd Skynyrd influences
Black Pistol Fire, another Southern Rock influenced band
Southern Culture on the Skids, alt-rock, known for "songs about sex, dancing and fried chicken"
Supersuckers, American rock band with influences from Foghat, AC/DC and ZZ Top
Hammerlock, alt-metal/ Southern rock hybrid "described as a raucous, forceful, in-your-face blend of Motörhead, Lynyrd Skynyrd, the Outlaws, and Black Flag "
Hogjaw, another Southern Rock /metal band
Delta Bombers, rock and roll band
Reverend Horton Heat, psychobilly/rock
Five Horse Johnson, stoner rock/blues
Drive By Truckers, Southern rock influenced
All of these are currently active to the best of my knowledge
If you want specific sub genres I can do a deeper dive into those for you, I have a lot of Southern rock, alt country and blues along with metal
Linked is the title track from Hammerlock's first album American Asshole