First answer.
ME!
But I am not in Ga.
I suggest the 12, 20 if you HAVE to go smaller.
I do not think .410 would be an option in turkey hunting for me.
And no matter what,
PATTERN the loads you buy. try at least 3 loads, and with the chokes you think you might use.
What works best with out buying every load and every choke? having a few buddies with similar shotguns, buy some ammo and a choke, try all until best choke/load for each gun is found.
YMMV.