Sister Names

So, I’m writing a story with a group of seven sisters.
There’s one set of triplets and two sets of twins.
The triplets are fourteen throughout most of the story, born in [name_u]November[/name_u] 2005.
Their names are :
[name_f]Jessica[/name_f] ([name_u]Jessie[/name_u])
[name_f]Emmeline[/name_f] ([name_f]Emmy[/name_f])
[name_f]Samantha[/name_f] ([name_u]Sammy[/name_u])
Their parents had a thing for matching nicknames, although all seven names don’t need to follow this.
The first set of twins were born in [name_u]August[/name_u] 2007.
The second set were born in [name_u]December[/name_u] 2008.
I was considering using the names [name_f]Lara[/name_f] and [name_u]Lexi[/name_u] for one set but changed my mind. They might be characters at the school or adoptive siblings, I’ve not decided.
The surname is [name_u]Carter[/name_u].
If you could steer clear of names beginning with J, E or S, that would be nice! I’d honestly prefer it if none of the sisters had names beginning with the same letter, but I don’t mind if they do.
[name_u]Unique[/name_u] (but not too unique!) names are welcome!
(Also, if you’ve seen the other thread I posted on here asking for a sister name to go with [name_f]Jessica[/name_f] and [name_f]Emily[/name_f], this one is unrelated!)

I really like the idea of different formal names with similar nicknames!

[name_f]Tabitha[/name_f] and [name_f]Gabrielle[/name_f] ([name_f]Tabby[/name_f] & [name_u]Gabby[/name_u])
[name_f]Lenora[/name_f] and [name_f]Penelope[/name_f] ([name_m]Lenny[/name_m] & [name_u]Penny[/name_u])
[name_f]Helena[/name_f] and [name_f]Melanie[/name_f] (Hel & [name_u]Mel[/name_u])
[name_f]Cassandra[/name_f] and [name_f]Hester[/name_f]/Hestrella ([name_f]Cassy[/name_f] & [name_f]Essy[/name_f])
[name_f]Margaret[/name_f] and [name_f]Ramona[/name_f] ([name_f]May[/name_f] & [name_u]Ray[/name_u])