I am not so sure that shemales prefer guys more than girls.
The answer is yes for 99 % of the ladyboys (Asian shemales), either they are top or bottom, transgenders or gay crossdressers.
The answer may be different when speaking of Brazilian shemales. Sorry if I am being rude but Latinas, especially Brazilian shemales are some kind of crazy dogs as far as sex is concerned. It might be a question of money but also the fact that many of them (please don't ask me what percentage) feel able to f... men as well as women or other sjhemales.
regarding Hungarian shemales, I prefer to answer very accurately : I don't know. I have never had contacts with them and I had been surprised when when I discovered they existed. What surprises me is that I can still remember the webpage name and I could find it still exists now :
https://www.beszamol...elkuld=1&neme=2
https://www.beszamol...rtner/index.php
I might be wrong but the best approach for you would be to select a few ones that you find attractive for you, then contact them. It's not their interest to be unpleasant, so they should answer politely if you explain them what you are looking for. As for any escort approach, you need to be careful not to be accepted by one interested only in money who could eventually be rude or unskilled for what you expect.
Good luck