GoooDDoggO
Tourist
I've been pretty secret about it all my life how do you find someone to share this interest
Trust is the most important. trust built on mutual respect. I've also seen some zoos who's only real way to contact or interact with them is if you have some skin in the game. i.e. Either you have animals of your own as well, or there's some implicit exchange of blackmail-like information. Mutually assured destruction, as it were.
Definitely know that this was a thing that was done in the early 90s / late 2000s but then the onset of Randy Pepe outing zoos and causing untold chaos and resulting in the deaths of several animals because they were seized and euthanized rather than have the shelters take on the risk of rehoming an animal 'trained for sexual purposes'.