Depends what you really want?
I think the 24hr chains, Snap, XO, Revo, goodlife, plus etc are all most people need for run of the mill training. Revo, surge and goodlife definitely attract a different crowd to snap for example.
These are good to see whether you prefer lifting or cardio or a combination but dont get sucked into paying some trainer with a fancy bmw, merc or raptor (on finance) a weekly fee to subscribe to his or hers app based training program. I think 95% are just scamming people out of money
Next step up are the built for purpose gyms. Laceys, mma, f45, crossfit, individual gyms, powerlifting places, rock climbing etc. I like this tier as you can sorta choose an interest and its dead easy to make friends pretty and training doesnt become such a chore but it ultimatelty depends what you want. You also pay shitloads more.