How about…
[name_u]Marin[/name_u]
[name_u]Morgan[/name_u]
[name_u]Monroe[/name_u]
[name_m]Macsen[/name_m]
[name_u]Marvel[/name_u]
[name_u]Mason[/name_u]
[name_u]Madden[/name_u]
[name_u]Mackenzie[/name_u]
[name_u]Marlow[/name_u] / [name_u]Marlowe[/name_u]
[name_u]Marley[/name_u]
[name_u]Maverick[/name_u]
[name_u]Mattie[/name_u]
[name_u]Mickey[/name_u]
[name_u]Merit[/name_u] / [name_u]Merritt[/name_u]
[name_u]Maxwell[/name_u]