Need help with baby boy's middle names

Alison
My oldest son is 7 years old. We had planned on only having one at the time & we gave him 2 middle names after both of his grandfathers. His name is Dakoda Patrick Martin. For our new (planned) baby boy, with whom I am currently 21w5d, I am using Louis (Lewis) as a middle name to honor my mom (Louise) & hubbys mom (Leissa) and I don't want Koda to feel alone in the 2 middle name world lol. So Bently ______ Louis is what we have so far. I'm thinking maybe Bently Michael Louis after daddy. Other family name options: Owen, Robert, Norman, Lawrence. Suggestions?