I like Miranda and I'm ok with Maybelle.
Our list:
Mary / Marie
Marina
Molly
Melina
Mina
Meredith
Miranda
Maybelle
Xylia
Xenia
Some combos suggestions:
Meredith Xenia
Miranda Xylia
Melina Xylia
Molly Xenia
Marina Xylia
Really I think it's just a matter of choosing our favorite M name and favorite X name though, the two X names are similar enough so that they have the same feel with any of names really.