MJM and Hand2Hand are the most legit two. But my brother was talking about he went to some other place, I think it was top flight but he said it was legit.
But the way to find out gymnastics places around your house it to.
1. Google Map your house and click search nearby
2. Type in gymnastics in the search nearby thing and search
3. Call all the numbers on the list that sound legit and ask if they have open gym, how much it costs, what times, etc.
4. Go there and have fun because foam pits are so much fun.
I can't wait to be back in Cincy in 3 weeks and shred some foam pits up.