These are releases I have that I could find...I forgot one that I use for hunting...a SpotHogg thumb release.
I don't use all of them at this time. I do use the Carter Sensation (blue with thumbhole) for hunting, the Carter Evolution (red with thumbhole) for practice and back tension training, and the 2 Truball HT's (lower right) for target shooting.
I really like the hinge releases over anything else. The blue one in the middle has popped my in the mouth a few times as has the black Carter Solution (one with the lanyard on it).