Glint in glasses is a pet peeve of mine and my OCD will not allow it... if I can help it. I never have them remove glasses, because if they wear glasses then they are not natural.
This was the best I could get and still keep my lighting the way I wanted it. It was quite a task but Im mostly satisfied with it.
This one, the light may not be quite what I was wanting, but I got zero glint. I am still learning and experimenting.
I do hope to buy a mannequin to practice with, and one thing I will be doing is putting some Walmart reading glasses on it to try to improve that area.