If you really want to find the best Shemales in the world who will more then willing to have sex with you for the right price you should visit ts-dating.com
you would probably need to leave you own country and travel to one of the countries from this list which was taken from the site:
If you are looking for the most high class shemales with the biggest variety you should probably visit United Kingdom.
With 342 shemales , Uk has the lead on all the other western countries but the price will be accordingly like anything other in Uk you will pay between 150$ and above for an encounter, but just take a look of one of them :
If you dont mind Asian girls and prefer alot less pricey shemales you should probably visit The Philippines with a hugh selection of 503 shemales!, The prices there could go as low as 35$ for an encounter and dont tell me you would mind having a peace of her:
If you prefer more of a balance between beauty and price just go to Thailand :)