Maybe…
[name_f][/name_f][name_m]Gabriel[/name_m] nn [name_m]Gabi[/name_m] / [name_f]Gabby[/name_f]
[name_f][/name_f][name_m]William[/name_m] nn [name_f]Willow[/name_f]
[name_f][/name_f][name_m]Albert[/name_m], [name_m]Alfred[/name_m], or [name_m]Alden[/name_m] nn [name_f]Allie[/name_f]
[name_f][/name_f][name_m]Marcel[/name_m] or [name_m]Marcellus[/name_m] nn [name_f]Marcie[/name_f]
[name_f][/name_f][name_m]Julian[/name_m] nn [name_f]Julie[/name_f]
[name_f][/name_f][name_m]Magnus[/name_m] nn [name_f]Maggie[/name_f]
[name_f][/name_f][name_m]Emerick[/name_m], [name_m]Emil[/name_m], [name_m]Emrys[/name_m], or [name_m]Emmanuel[/name_m] nn [name_f]Emmy[/name_f]
[name_f][/name_f][name_m]Adlai[/name_m] nn [name_f]Addie[/name_f]
[name_f][/name_f][name_m]George[/name_m] nn [name_f]Gigi[/name_f]
[name_f][/name_f][name_m]Isadore[/name_m] nn [name_m]Isa[/name_m] or [name_f]Izzie[/name_f]
[name_f][/name_f][name_m]Lucian[/name_m] or [name_m]Lucius[/name_m] nn [name_f]Lucie[/name_f]
[name_f][/name_f][name_m]Dalton[/name_m] nn [name_f]Dolly[/name_f]
[name_f][/name_f][name_m]Alexander[/name_m] nn [name_f]Lexi[/name_f]
[name_f][/name_f][name_m]Mason[/name_m] nn [name_f]May[/name_f] or [name_f]Maisie[/name_f]
[name_f][/name_f][name_m]Donovan[/name_m] nn [name_f]Nova[/name_f]
[name_f][/name_f][name_m]Philip[/name_m] nn [name_f]Pippi[/name_f]
[name_f][/name_f][name_m]Eugene[/name_m] nn [name_m]Genie[/name_m] / [name_f]Jeanie[/name_f]
[name_f][/name_f][name_m]Calvin[/name_m] nn [name_f]Callie[/name_f] / [name_f]Cali[/name_f]
[name_f][/name_f][name_m]Maximilian[/name_m] nn [name_f]Millie[/name_f]
[name_f][/name_f][name_m]Salvador[/name_m], [name_m]Salvatore[/name_m], or [name_m]Absalom[/name_m] nn [name_f]Sally[/name_f]
[name_f][/name_f][name_m]Orlando[/name_m] nn [name_f]Orli[/name_f]
[name_f][/name_f][name_m]Flynn[/name_m] nn [name_f]Lynnie[/name_f]
[name_f][/name_f][name_m]Nelson[/name_m] nn [name_f]Nell[/name_f] or [name_f]Nellie[/name_f]
[name_f][/name_f][name_m]Ernest[/name_m] or [name_m]Ernesto[/name_m] nn Ness or [name_f]Nessie[/name_f]
[name_f][/name_f][name_m]Apollo[/name_m] nn [name_f]Polly[/name_f]
[name_f][/name_f][name_m]Demetrius[/name_m] or [name_m]Dimitri[/name_m] nn [name_f]Demi[/name_f]
[name_f][/name_f][name_m]Tristan[/name_m] nn [name_f]Tris[/name_f]
[name_f][/name_f][name_m]Darwin[/name_m] nn [name_f]Winnie[/name_f]
[name_f][/name_f][name_m]Abner[/name_m], [name_m]Absalom[/name_m], or [name_m]Abdul[/name_m] nn [name_f]Abby[/name_f] (Abel, [name_m]Abraham[/name_m], and [name_m]Abram[/name_m] are stretchier but also work)
[name_f][/name_f][name_m]Beckett[/name_m] nn [name_f]Becky[/name_f] or [name_f]Kitty[/name_f]
[name_f][/name_f][name_m]Christopher[/name_m] nn [name_m]Christie[/name_m]
[name_f][/name_f][name_m]Leander[/name_m] nn [name_f]Lea[/name_f]
[name_f][/name_f][name_m]Lorcan[/name_m] nn [name_f]Lori[/name_f]