Alexey is a classic (well, in [name_f]Russia[/name_f]) with a hip undertone… and underused in the US I think!
[name_m]Conrad[/name_m] fits that bill for me too. Or perhaps [name_m]Cornel[/name_m] ([name_m]Cor[/name_m]-[name_f]NELL[/name_f]) or [name_m]Cornelius[/name_m]?
[name_m]Magnus[/name_m]. [name_m]Oscar[/name_m]. [name_m]Olaf[/name_m] would be great too but too close to [name_m]Oliver[/name_m]…
[name_m]Rafael[/name_m]? [name_u]Rafe[/name_u] is a cute nn. Or there’s [name_m]Rafferty[/name_m].
I like the suggestions of [name_m]Whittaker[/name_m], [name_m]Dominic[/name_m], or [name_m]Gabriel[/name_m].
Maybe:
[name_m]Gregory[/name_m] -nn [name_u]Grey[/name_u] is cute!
[name_m]Atticus[/name_m] nn [name_u]Kit[/name_u] or [name_m]Ace[/name_m]/[name_u]Asa[/name_u]
[name_m]Nicolas[/name_m] or [name_m]Nicolai[/name_m]
[name_m]Isaiah[/name_m]
Benetton
[name_m]Pericles[/name_m]
[name_m]Barnaby[/name_m] (bosco would be a cute nn I think!)
[name_m]Lancelot[/name_m]
[name_m]Antony[/name_m]
Of those, Benetton or [name_m]Atticus[/name_m] gets my vote - good luck!