Middle name ideas

Need help with middle name ideas.. our top picks for first names for our third girl is Sloane (husband rated 6/10) or Olivia (husband rated 2/10) - but these are only ones he hasn’t said straight up no to - another name he thought would be okay is Jane but he would want an M middle name with that one. Ideas so far are Sloane Emerson or Olivia Riley but husband doesnt love either of those. He said something about not giving her a middle name but our older three kids have middle names and i prefer having a middle name. Our last name is Kelly. Our older three kiddos' names are Wyatt Robert, Eliana Sue, and Nora Gray.