Colin is alright, not a fave, but still a nice enough name. I agree that Colin Alexander is boring though! What about:
Colin Rupert
Colin Raphael
Colin Isaiah
Colin Tobias
Colin Terence
Colin Hamish
Colin Hugo
Colin Jasper
Colin Jett
Colin Maxwell
Colin Brodie
Colin Zeke
Colin Ezekiel
Colin Elijah
Colin Dexter
Colin Finley
Colin Frederick
Colin Fraser
Colin Seth
Colin Amos
Colin Gabriel