I was wondering if having siblings who have the same ending would be too close.
Boys:
[name_m]Hugo[/name_m]
[name_m]Bruno[/name_m]
[name_u]Nico[/name_u]
[name_m]Mateo[/name_m]
[name_m]Alonzo[/name_m]
[name_m]Argo[/name_m]
[name_u]Banjo[/name_u]
[name_u]Bo[/name_u]
[name_u]Theo[/name_u]
[name_m]Diego[/name_m]
[name_m]Milo[/name_m]
etc.
Girls:
[name_f]Margo[/name_f]
[name_u]Caro[/name_u]
[name_f]Cleo[/name_f]
[name_u]Echo[/name_u]
etc.
I think it’s ok, but if you give the ending to 2 in your sibset, unless they’re twins, I would give that ending to ALL sibs. I also think it’s better with longer names ie: [name_m]Octavio[/name_m] rather than [name_m]Otto[/name_m].
I agree with pp. I would try to avoid rhyming endings like [name_m]Hugo[/name_m] and [name_f]Margo[/name_f]. But [name_m]Hugo[/name_m] and [name_m]Matteo[/name_m] is very nice.