Okay so I am going to approach this topic from a different angle.
Glasses, like haircuts can excentuate or minimise features. Be brave and go to the mens glasses section, then try on glasses looking for ones that flatter your more manly aspects.
So, if you have a small head, aim for small glasses to give the illusion its bigger. Shapes that cover your cheek apples may help- if the lower part of the lens throws a shadow onto your cheek, we perceive its roundness from the curvature. Thick upper frames may suggest a stronger, straighter brow bone. The nose brace can also help suggest a thicker bridge. The overall shape of the lens can suggest a wider jaw too... wider then taller will thin your face for example. Avoid lens shapes that flick out at the tops like a cats eye- this suggests lashes.
Dont assume thicker equals more male. Think the stereotype image of a lesbian we often see with thick librarian glasses... not masculinising really at all when you think about it.
One cue I suspect will work is spring arms. Guys tend towards practical eyewear.
Hope that helps.