Indeed a lot of eye candy at Temple Hells Kitchen but sadly the steam and sauna are outside the locker room by the pool and are co-ed. Sauna at Astor Place Temple can get frisky on occasion. And the Temple Spa in Midtown East is really nice, but again, co-ed.
I switched to Lifetime because it’s free with my AARP Medicare. Nothing happens at any of their clubs that I’ve seen. They even post signs discouraging nudity in the sauna and steam.