I, for example, am very turned on by contrasts. So noticeable height differences, size differences (individual body parts or the whole package), skin tone, shapes, etc.
I kinda wish my wife (who’s very pale) were bi because I would love to see her have sex with a dark skinned woman that’s a similar height and weight as her, or a short, petite woman (she’s also tall for a woman).
Yay! I remember some guy on Reddit saying he would not date anyone with straight hair, he just was not into it. Only wavy, curly, or kinky hair did he find attractive. I can see the beauty in smooth flowing hair personally, but would not want it for myself, curly is livelier.