Closest one to there is going to be onelife perimeter. Not a bad gym just gets really busy during peak hours. There’s also a LA fitness near there but it’s trash.
Madhouse is around a 25-30 min drive if you have the time I would just go there honestly
As @pothole said, One Life is really the best option in GA. Madhouse is a hardcore gym and has two of every piece of equipment ever made. Lol it’s an experience for sure and perfect for hardcore bodybuilders.
If you’re looking for more of an upscale gym or club then I would suggest Lifetime.