Well, I have a certain penchant for dwarfs with large breasts. I remember one night at the Loco a dwarf came into Toronto just to pay off her Visa bill from Xmas, she was working just the one night. I managed to convert that into a threesome with Russian gal, and,well, let's just say it was a night I will never forget.
My tastes may not be for everyone, and certainly not for the faint of heart. You should not emulate anyone else. Find your own happiness.
1] Decide in your own mind what YOU really really really like, go to the dark place and let it loose.
2] Find a girl who appears to have those traits.
3] Read reviews of her, remember YMMV, reviews may not be totally accurate, etc etc etc but if she is somewhat close to what you want then onwards.
4] Get the cash, all of it, put it aside so you will not miss it and it is not needed for food, rent etc.
5] Book an appointment and see her.
6] THIS IS CRITICAL ... LEAVE YOUR EXPECTATIONS IN THE HALLWAY. Let the experience with her unfold as it does with you being yourself and letting that dark place in your mind seeing a little light of day. It may not be the best, you may have to try several different ladies, but think about what YOU could do different to make it better. It matters not that the lady could have done this or that differently, keep to what you can control. It may be as simple as you asking politely if she will perform a particular act.
7] If the experience will add to the general knowledge of others, post a review.