middle name for a boy

Trisha

so my husband and I have decided that if our baby is a boy his first name will be Seamus (shay-mus) but we can't find a decent middle name that we both agree on. any suggestions?

ps. please no S or G names because our last name starts with a G and obviously Seamus starts with an S.

PS. we have the girl name completely figured out (Phoebe willow).