I’d say [name_f]Lydia[/name_f] probably fits better with [name_m]Julian[/name_m], [name_m]Silas[/name_m], and [name_f]Audrey[/name_f], being more vintage, whilst [name_f]Lilah[/name_f] feels a bit more modern like [name_m]Ethan[/name_m] and [name_u]Aidan[/name_u]. But I think [name_f]Lydia[/name_f] works best overall, so I’d go for [name_f]Lydia[/name_f].