The old Aavalon Spa in Bethlehem/Allentown used to be that. Locations on Stefko and Easton Ave. were YMMV (a few of the girls were down, but not all), but at the Cedar St. location, it was pretty much 'game on', especially with the gals that split time between there and this place called Amystika, up north in Lords Valley. I remember seeing all types at Aavalon, including a hot AA chick named Persia.
But man, Reading in the 1990s is what you are dreaming about. There must have been at least a half a dozen spots back then that fit the bill in terms of ethnic make-up. Shoot, I think there were 3 on Lancaster Ave. in Shillington just within a block or two of each other: Once called the Harem, and then Sultan's Health Club and Marilyn's, which were right next door to each other. Not all were FS; you had to do your homework, which back then meant actually getting up, going out and buying a copy of PASG or USASG, but that was the heyday. If only time travel were real.