Using the alliteration of your son and using you’re list I think of
[name_f]Marlow[/name_f] [name_f]Maeve[/name_f]
[name_f]Ayla[/name_f] [name_m]Augustine[/name_m]
[name_m]Emerson[/name_m] [name_f]Eleanor[/name_f]
[name_f]Quinn[/name_f] [name_m]Leighton[/name_m]
[name_m]Leighton[/name_m] [name_f]Lucille[/name_f]