I used to train at nearly every gym in Atlanta over the years I lived there. A few good WCW stars there and mostly the Power Plant guys trained there at the Main Event in Marietta.
Luger, Johnny the Bull, Kidman, Johnny Swinger, Raven, (who was that dude that lasted about 4 weeks in WCW before getting fired, named Maxx Pain or something?? Did the jumping piledriver as a finisher? Well... he was there), DDP, Kimberly, a few others. Scott Steiner trained there, although he and Rick mostly trained at Coffee's Gym a bit further up the street. (Bad Ass place)
Sting, Goldberg, Zybsko (who was strong as hell and would regularly do multiple sets of 405 on the flat bench for 10-12 reps, but had a horrendously pock marked face), Booker T, Stevie Ray, and couple more worked out at the Main Event on Buford Highway before it was sold and became Ropeman's Fitness.
Flair, Sullivan (who would come in and pick one exercise like standing military press or bench press or squat and then proceed to do at least 50 sets with the same weight on it over and over again for the entire time Flair was on the stairmaster, Anderson, Vicious, Animal, Johnny B Badd all trained at the Golds Gym on Buford, a few miles down from the other Main Event. Then it because Fitness World, Planet Fitness, and a dozen other names over the years.
Glacier, Rage, Kaos, Kanyon, Sick Boy, Jindrak, Benoit, Malenko, and Jericho all trained at the Power House gym in Alpharetta. Which had some of the coolest weight machines you could imagine.