Hello Adham Adassy,
As you have seen, it varies because of a few conditions. I would pick a type of class I find interesting and comparison shop in the area. There are many options and that many more different answers. The fun is in the looking. I also get quite a few ads in the mail about exercise classes; that is just the start of the search.
We can’t emphasize enough to make sure your trainer is certified, for your safety and enjoyment.
NAPS 2 B Fit