Just use the TER reviews search.  Put in the minimum criteria you are looking for and only specify chicago for location.  You'll be able to easily read stats and reviews on lots of girls.  Any girl with good reviews should be a good provider and be noob friendly.  The only complication may be acting right and actually just getting the appointment and getting in the door.  Once you are there, a well reviewed gal should take good care of you.  If you want to post specific details about what you look for in a provider, I think you may get a few more direct suggestions.