"Emergency help"! I'm a fitness enthusiast, and I want to go to the gym and simply be a touring coach. How to apply? What certificate should I take? ...

First of all, you should be in good shape and have a little temperament (because many fitness people are rich)

You must also have a coach qualification certificate, and different levels of treatment are different. It's hard to say if you apply. You can go to the entrance of the health club first to see if there are any new recruits (any position is ok). Good luck.