Greek baby boy name

My husband is Greek and I'm Irish. The baby will have a extremely ethnic last name so it's really hard to find a name that flows properly. Also, in his culture everyone is named after a saint and celebrate their name day. I would hate for my son to be the only one out of his cousins who didn't have a name day and feel like an outsider. My husband says I'm thinking too far into it but I feel like it's something we definitely have to take in to consideration. With that said I came across one name I really like but I'm not sure if it's too "out there". 
What do you think of Maximus? He would be called Max.