Anyway, just to add, it is actually cheaper to find through brokers as well. With prices ranging from RMB 300 to 500.
Because each broker will easily manage 30 over boys at any one time, and the competition prevents overcharging.
On the other hand, the online escorts typically can charge whatever they like with less competition, and hence will charge rates from RMB 500 to RMB 800, or even more.