Choosing a god parent for my child?

Hey y’all. Do any of you have god parents for your children? If so, who did you choose as the god parent? I don’t believe in having friends as god parents unless they’re like childhood friends that are family. I’d like my twin sister to be the god mother and my husbands brother to be the god father but I do not know how that would work. If something happened to one of us I’d want to make sure that not only does my family get to see/care for the child, but so does his. Is it odd to have a god mom and dad that don’t know each other well?