So baby names!

My husband and I were brainstorming names for future kiddos. We would love to have a boy and a girl, but I'll be more thankful to have two healthy babies. Okay so we aren't planning on having one in a matter of a year. We are going to wait till we both finish Boot camp (He's Navy and I'm Marines). He gets to go to bootcamp next July and I get to go the year after. So technically waiting 2 or 3 years. But we have an idea of the names for our future children.

I don't know, I just find it cute.

For a girl it will be Marina Irene Garcia or Marina Sophia Garcia, I don't know what middle name though (help me out?)

For a boy, he will carry his father's name, he'll be, Heriberto Garcia III

But please help me out on a middle name for Marina?