Which way?

[name_f]Kaia[/name_f] [name_f]Sophia[/name_f]

I think it sounds nice with the longer name second and [name_f]Sophia[/name_f] is also more popular than [name_f]Kaia[/name_f] in a lot of places I think so if she has [name_f]Kaia[/name_f] as the first name she’s less likely to have other people with her name at school etc