I love the name [name_m]Ace[/name_m], but I usually get the comment “[name_m]Ace[/name_m] is better as a nn”. Not that it would change my mind on possibly using [name_m]Ace[/name_m] on it’s own, I would like some suggestions of names that [name_m]Ace[/name_m] would be the nn. I tried thinking of some but couldn’t come up with much.
[name_u]Asa[/name_u] came to mind immediately.
I don’t have much of anything else…
I would just use [name_m]Ace[/name_m] 
[name_u]Chase[/name_u], [name_u]Trace[/name_u], [name_m]Case[/name_m]/[name_m]Casen[/name_m], [name_u]Jace[/name_u]/[name_m]Jason[/name_m], [name_u]Mason[/name_u]
I’ve always loved the names [name_u]Asa[/name_u] and [name_m]Ace[/name_m], and when put together–perfect!
I love the nickname [name_m]Ace[/name_m], and I am planning to use it for my favourite boy name [name_u]Austen[/name_u]. I also like it as a nickname for [name_m]Atticus[/name_m] and [name_u]August[/name_u]
Other than [name_u]Asa[/name_u]… [name_u]Jace[/name_u], chase…, names like that ?
I remember a [name_u]Berry[/name_u] having [name_m]Ace[/name_m] as a nn for [name_m]Horatio[/name_m]. I personally love [name_m]Horatio[/name_m], but I know it’s not to everyone’s taste.
I personally like [name_m]Silas[/name_m], nn [name_m]Ace[/name_m]
[name_m]Maceo[/name_m]
[name_m]Ignacio[/name_m]
[name_m]Placedo[/name_m]
[name_u]Wallace[/name_u]
[name_m]Horace[/name_m]
[name_m]Acacius[/name_m]
[name_m]Acton[/name_m]
[name_m]Cassius[/name_m]
[name_m]Casper[/name_m]
[name_m]Cashel[/name_m]
[name_m]Cormac[/name_m]
Macklin
[name_m]Macewen[/name_m]
[name_m]Macaulay[/name_m]
[name_m]Atticus[/name_m]
Aitkin
[name_m]Asher[/name_m]
I second the suggestion of [name_u]Asa[/name_u], I think [name_m]Ace[/name_m] is a cute nn