I like [name_m]Oslo[/name_m]! A little like [name_m]Otto[/name_m], [name_m]Sholto[/name_m], [name_m]Ozzy[/name_m], [name_m]Finlo[/name_m], [name_m]Kelso[/name_m], [name_m]Orso[/name_m], [name_m]Cosmo[/name_m], [name_m]Roscoe[/name_m], [name_f]Marlo[/name_f] etc which I like too 
[name_m]The[/name_m] fact it’s a place name however might put some people off.
[name_m]Oslo[/name_m] [name_m]Ferdinand[/name_m] is cool!
I’d add in [name_m]Oslo[/name_m] [name_m]Frederick[/name_m], [name_m]Oslo[/name_m] [name_m]Beckett[/name_m], [name_m]Oslo[/name_m] [name_m]Finnian[/name_m], and [name_m]Oslo[/name_m] [name_m]Jasper[/name_m]