I've actually thought about posting about Mason on this board too during the last days LOL. Something about the name strikes me, but I cannot say I love the sound or look of it very much. I wouldn't necessarily say that it looks or sounds too trendy, but simply very American (I've no idea if it's really more common in the US than elsewhere, but that's my impression of it ;)) - very... Southern American, somehow, like the name of a good-tempered, funny, friendly guy living on a farm in Texas or something. lol. It would fit such a guy, but I don't find that it would fit a rich and sweet boy living in New York City in a super-big apartment, that would be very... mismatched.
About combos...
Mason Gulliver
Mason Robert
Mason Philip
Mason Drew
Mason Cree
Mason Rudy
Mason Jermaine
Mason Quinley
Mason Porter
Mason Judah
Mason Alexi
Mason Terry