Out of my regulars -
If you don't mind fake boobs, then
Nicole would fit your criteria. OzA 25-L (an upstairs window) on nightshift (from about 22:00). Age about 27, petite, very pretty, a lot of fun.
A natural brunette who is currently blonde but has a lovely pair of B/C tits is
Elena at Stoofsteeg 10-R on dayshift. Really nice girl, young, a bit of a stunner.
Both are good €50 choices.