Any GYM recommendations in Erlangen/Spardof area.

Hello everyone, I'm 24M pretty much new here. It's just been a few weeks since I arrived in Germany.

I am looking forward to joining a Gym. I would like to know how the Gym system works here as I'm from India.

Also, what would be a genuine amount for the same one should consider.

Any suggestions or recommendations in this will be appreciated.

Thanks in advance!