Id rec getting a vip membership and doing some research. Figure out what is important to your sessiom and see what gals look appealing.  

And be comminicative, let them know its something new for you.  

What i dont recommend is asking on this forum and just waiting for someone to give you their preferences, of gals they regularly see
 
This forum is comprised of some seasoned vets, some that have been doimg this for many decades. Frist timer advice isnt the forte around here.  

Go suck a dick and see if you like it or not. Do report back.

Great advice above. It’s cool that you’re ready to try a TS. I hope you have a great time whoever you choose!

you could find a massage parlor with TS/CD's first.

You likely will not be able to bottom there, but at least you'll get to see whether you like the company of a TS/CD.

Also depending on your budget should not be an expensive outing to do some 'research'