I should post a picture of my glasses, they'd be better for him than me to be frank. The ones Xeran posted or okay, kind of plastic looking. If he got solid, rectangular looking frames it would be better. Not incredibly thick, but thicker than the bendy ones he has now. Then again, the Wayfarer could look good, its kind of hit or miss, but they are pretty large and whimsical frames. Usually Wayfarer is more reserved for sunglasses, but those frames can be adapted but they are expensive, since Ray-ban coined the term, I think. Armangelio Zegna is what I wear, no idea on the spelling, but they/he makes good frames too.
Why am I even being helpful? Hahahaha.