For Alabama look up Curt Carpenter with Lighthorse Tactical he’s around Hoover but trains all over the state, Chase with Talon Defense is another good one but he has teamed up with Centrifuge Training and is traveling out of state a lot. Curt is a good dude, good teacher.
There’s a training facility called Double Tap near Calera, AL. It’s a good facility and hosts some big name instructors occasionally. Features outdoor bays, bunk house, laundry facility, showers, and a indoor two story force on force house.
I can’t advise as for the others mentioned, but I’ve trained with Jared Hudson/The Shooting Institute when he came up to my AO. Top notch instruction and he’s a heckuva guy. They have built a facility in AL and are hosting classes as well.
I’d hazard a guess that any trainer mentioned here would be GTG. This is the most switched-on group (P&S) and I don’t think you’ll be led astray.