You probably won't get a call from any sort of "major" without previous 121 time. Wanting to stay in ATL it's obvious that ASA is an option. I've been here close to a year and have enjoyed it so far and things are improving quickly. Living in domicile is invaluable. If you want to try for SKW or RAH you will have to commute. You should be able to get interest from any regional though. Just apply to your 3 choices and see what happens.