I’ve never heard of Bonneau, but I think it’s cool. I like how [name_m]Beau[/name_m] is the nn.
Beau/ Bo / [name_m]Bow[/name_m] is also really cute for a girl!
Similar names to get to [name_m]Beau[/name_m]:
[name_m]Bowen[/name_m]
[name_f]Bonita[/name_f]
Beaudell
[name_m]Beauchamp[/name_m]
Beaudean
[name_m]Beauden[/name_m] / [name_m]Bowden[/name_m]
[name_f]Bonnie[/name_f]