Lol bro skirtchaser. I'll provide u some info.
1. Geylang
Here we have both the legal and FL working there. If you walk down the small lanes or Lorongs we call it,there are many brothels over there. Thai gals cost bout 40 bucks while there are some PRC joints that costs about 150 bucks per half hour. Selection is via a fish tank where u can sit down and take your time to choose a girl of your liking. Girls here are checked very regularly for HIV and STDs. Here is the links for your viewing.
http://www.sbfsg.net/forumdisplay.php?f=2
However, if you want guarunteed good service, there are your girls from Malaysia (chinese) which costs 150/hr one shot. U need to find the thread on Cat150 for the latest girls. Go for the commando girls as they provide the best service so far compared even to tope. Sure not to disappoint
http://www.sbfsg.net/showthread.php?t=7306
http://www.sbfsg.net/forumdisplay.php?f=2
2. Same place as above but this time is on the streets. There are many FLs working over there and its up to you to discuss the price and service wanted. These are illegal ones and FJ costs 100-120. However if your nego is very good sometimes 80 bucks also might be possible. Services she provides or that you want its better to ask first b4 agreeing to take her. Having said that, u then will proceed to a hotel nearby which u must pay @10 bucks/hr. Condom is not provided and it would be a pretty good idea to head to the nearby conveniece store to get a pack b4 starting your hunt. FL girls there are usually from China, Indonesia and sometimes Vietnam. It is usually a hit or miss kinda thing so there is no standard SOP for them.
3. If you look at the sammyboy forum in general, there are some advertisements like royal escorts or my okt there. Click on the link and join their site. Pic of girls and their services/charges (which includes bbbj, cim, frenching, anal etc) are stated. Booking of services are self explanatory on each site. Sometimes 3somes or 4somes are even available. Just ask the pimp via sms or call for confirmation.
4. U also have the local health centres where FJ, HJ or cbj (BBBJ if you are lucky) is available. Just go to any store to get the New Paper and check the classified sections. Girls cannot be choosen unless u specifically request for a name. Best if you check the link on Health Centre and KTV tangos, there are good reviews on girls there. As I havent been back to sg for a long time, i'm not so sure where is the hottest property now. Its a bit more expensive where entrance charge is $40-45 and a full Fj is about 100-120. HJ is 60 and bj is bout 80. Whether cbj or bbbj again depends on the girl.
5. There are also massage joints that pops out here and there. However its best to check the other threads on Local FL's cuz these joints usually gets raided and so there is not definite place of operations.
If you need further help just ask bro...in the meantime happy hunting in sg