First name

I have a question? Okay so I just found out I'm having a handsome baby boy and my Bf wants to name it after him which will make him the third. But the only thing is there is way to many johns in his family. And I honestly don't mind naming the baby after him. It is our first child too!πŸ’–πŸ‘ΆπŸ’– My question is can I change the first name or switch it up a little?(PLEASE DON'T BE RUDE!!)