Unsure about this sibset

Writers' Corner
1

As usual, I got this idea for a story with a sibset of 4 to name, and I got stuck. They are 2 girls and a boy, the older girl is 12, the middle one is 9 or 8, then there’s the 6-year-old boy and a newborn/1-y-o girl at last. The boy could be either [name]Peter[/name] or [name]Gabriel[/name] (kinda weird to use one of them as a middle name for the other!), while I thought something classical for the older girls, like [name]Charlotte[/name], [name]Adele[/name], [name]Lydia[/name] or [name]Elizabeth[/name]. For the youngest, I came up with [name]Greta[/name], but I don’t like it’s alliteration with [name]Gabriel[/name] -which is probably going to be the final choice, but I could get over the same initials thing, since I love the names- nor the fact that it sounds slightly less feminine than the others. Also, most of these names have A-E vowels, and I wanted to use that as a subtle connection, but in that case [name]Lydia[/name] would be out. If you add the R to this trend, then [name]Adele[/name] would be out too, and I’m one name short.
The final draft has [name]Adele[/name], [name]Charlotte[/name], [name]Gabriel[/name] and [name]Greta[/name] penciled in, but I’m still unsure about this set. Plus, middle names are still a mystery. I might as well go ahead and avoid them altogether. Would it be weird?

Any suggestions? [name]Even[/name] if they don’t fit with the A-E-R trend, add them, I might just get inspired!

2

[name]Peter[/name] [name]Gabriel[/name] sounds better than [name]Gabriel[/name] [name]Peter[/name], so if you wanted to avoid the alliteration, you could do [name]Peter[/name] [name]Gabriel[/name] instead.
I would avoid using [name]Adele[/name]. [name]Just[/name] because [name]Adele[/name] is a major singer at the moment, and readers might automatically associate the two.
[name]Adelaid[/name], [name]Adelia[/name], and [name]Adelina[/name] are similar alternatives.
Middle name ideas:
[name]Peter[/name] [name]Gabriel[/name]/[name]Gabriel[/name] [name]Peter[/name]
[name]Adele[/name] ([name]Adelaide[/name], etc.): [name]Fiona[/name], [name]Poppy[/name], [name]Rose[/name]
[name]Charlotte[/name]:[name]Lynn[/name], [name]Eleanor[/name], [name]Elaine[/name]
[name]Greta[/name]: [name]Jeanette[/name], [name]Daphne[/name], [name]Blanche[/name]

I think [name]Lydia[/name] is a fine name, but if you want to stay with the A-E-R names, then it’d be out. Here are some more name that include an A, E, and R:
[name]Anamarie[/name]
[name]Arabelle[/name]/[name]Arabella[/name]
[name]Arden[/name]
[name]Ardell[/name]-yes, this is a name, very similar to your [name]Adele[/name].
[name]Arela[/name]
[name]Ariale[/name]
Aireanna
[name]Amber[/name]
[name]Carter[/name]

I know that’s not a whole lot, but that’s what I got.