You`re probably already aware, but just in case: check out https://terb.cc
Same as here, but the big agencies there advertise daily who will be available. Tons of info in those forums, and the advertising section almost takes the place of something like ERS.
You can also head to Cafe Atlantis (strip club) and get pretty much anything you want upstairs. Offers you a unique opportunity to see a huge amount of girls first and choose the one you want. The downside is, there isn`t `total` privacy upstairs, and you probably won`t have the same sort of service for as low a cost as a straight up escort. But you sure don`t have to be afraid of B&S when you pick one of the the 35+ girls working

Note: not all girls offer extras upstairs.......but in my experience most did.
Anyway, have fun on your trip!