I’d name 'em like siblings. No matching first letters, preferably no matching endings, similar popularity levels, similar in style…
I would use names like [name]Alice[/name], [name]Charlotte[/name], [name]Emma[/name], [name]Frances[/name], [name]Hazel[/name], [name]Iris[/name], [name]Lucy[/name], [name]Ruby[/name], or [name]Stella[/name] for girls. [name]Alice[/name], [name]Charlotte[/name], [name]Emma[/name], [name]Hazel[/name], and [name]Lucy[/name] are probably my favorites. Boys are tougher, but I’d likely go with names like [name]Henry[/name], [name]Isaac[/name], [name]Lucas[/name], [name]Peter[/name], [name]Russell[/name], [name]Simon[/name], or [name]Thomas[/name]. My favorites are [name]Henry[/name], [name]Isaac[/name], and [name]Peter[/name], but if I needed five, I’d go with [name]Henry[/name], [name]Isaac[/name], [name]Lucas[/name], [name]Peter[/name], and [name]Russell[/name]. If I could pick any combination of genders, I’d likely use [name]Alice[/name], [name]Charlotte[/name], [name]Henry[/name], [name]Isaac[/name], and [name]Peter[/name] (GGBBB) or [name]Alice[/name], [name]Charlotte[/name], [name]Emma[/name], [name]Henry[/name], and [name]Isaac[/name], or maybe [name]Peter[/name]. I have no clue!
I know those are all two syllable classics, but that’s sort of my “thing” right now. If I were to do anything match-y, it would be in the middle names. [name]Alice[/name] [name]Briony[/name], [name]Charlotte[/name] [name]Eloise[/name], [name]Emma[/name] [name]Violet[/name], [name]Henry[/name] [name]Oliver[/name], and [name]Isaac[/name] [name]Dorian[/name]. All have I’s and O’s! All are three syllables! Or, maybe I’d do something literary, like [name]Alice[/name] [name]Harper[/name], [name]Charlotte[/name] [name]Willa[/name], [name]Emma[/name] [name]Bronte[/name], [name]Henry[/name] [name]Austen[/name], and [name]Isaac[/name] [name]Hawthorne[/name]. Eh, I don’t know…
[name]Lemon[/name]