I'd rather not have a hyphen surname, so it's either Turner or Riverside, you can choose. Either one is fine with me.
From your suggestions I like Noah Henry and Noah Alexander. Noah Henry is a bit short for me though, and Noah Alexander is my #1 combo even IRL.
More suggestions:
Phineas Alexander
William James "Liam?"
Elijah Henry
Caspian Alexander
Noah Raphael
Raphael Alexander