My first thoughts were [name_f]Maisie[/name_f], [name_f]Maeve[/name_f], [name_f]Mavis[/name_f] and [name_f]Maple[/name_f], although i really like the idea of using [name_f]Esme[/name_f]!
Ones I haven’t seen anyone mention yet:
[name_f]Mavie[/name_f], [name_f]Maelle[/name_f], [name_f]Maelynn[/name_f], [name_f]Maila[/name_f], [name_f]Malia[/name_f], [name_f]Maelia[/name_f], [name_f]Ismay[/name_f]
These might lean a bit more maculine for you but: [name_f]Mavery[/name_f], [name_m]Mayer[/name_m], [name_m]Mayson[/name_m] / [name_m]Maysen[/name_m]