Take your pick from any of the Thai places dotted around the city centre.
They all provide B2B & HE.
You'll find the details listed on Google:
Panviman, Jasmine Spa, Bamboo, Mayuree, Manta, Paradise.
Panviman have the best girls with prices to match.
If you want a better chance of B2B at a lower price and the possibility of FS, a few minutes stroll from the centre will take you to a couple of Chinese places:
Sakura, up near China town, and PinkPeony by the Royal Lpool hospital.
They all have reviews on UKP.