Take a look on eros, backpage, and cityvibe and find a few providers that get the juices flowing.  Read a few of their reviews and then post a note here with links asking for more input. If they are well known, you will get feedback.  Also, meetinga ts for your first time is pretty open ended.  Let the folks here know what you may want to try and experience, or what you feel your limits are for round 1.  

Do that and you will find people will respond and try to help you finalize your selection.

Hope this helps.  Good Luck.