I prefer the sauna concept: an establishment where it is customary not to speak in the common areas. Apart from a few whispers, everything is communicated through body language.
And when you find a partner, you can either get hot and heavy and have sex in front of everyone else, or at some point retreat to one of the small private rooms.
It's not the complete anonymity of a glory hole, but it's also not a traditional encounter where you know the person's name and at least a few details about their life