I don’t love either of those. It depends which pronunciation you use but I would consider [name_f]Lula[/name_f], [name_f]Susie[/name_f], [name_f]Sue[/name_f], [name_f]Suri[/name_f], [name_f]Sally[/name_f], [name_f]Zuzu[/name_f] and [name_f]Zaza[/name_f].
I’m not sure of my favourite, maybe [name_f]Sally[/name_f]?