Sibling names

Name Advice
1

We are going to have our 3rd baby, and it is already crazy with the name, we cant seem to find a great fit ! here is what we know for sure :
we have a daughter [name]Mackenzie[/name] [name]Grace[/name] ([name]Grace[/name] after her grandmother)
we have a son [name]Everett[/name] [name]Joseph[/name] ( [name]Everett[/name] after great grandfather and [name]Joseph[/name] after grandfather)
For a boy we have
[name]James/name and
[name]Oscar[/name] (great grandfather)

Girl we have
[name]Dorothy[/name] (great grandmother) and
[name]June[/name] (great grandmother)
we are not sure to use them for middle or first names and what will go best with [name]Mackenzie[/name] and [name]Everett[/name]???

2

[name]Verity[/name] [name]June[/name]
[name]Seren[/name] [name]Dorothea[/name]
[name]Anthea[/name] [name]June[/name]
[name]Finley[/name] [name]Genevieve[/name]
[name]Genevieve[/name] [name]Hope[/name]
[name]Honor[/name] [name]Bellamy[/name]
[name]Tahlia[/name] [name]Skye[/name]
[name]Carys[/name] [name]Anne[/name]
[name]Isla[/name] [name]June[/name]
[name]Olivia[/name] (very popular) [name]Rose[/name] (popular)
[name]Philipa[/name] [name]Morgan[/name]
[name]Aurora[/name] [name]June[/name]
[name]Aurora[/name] [name]Juliet[/name]
[name]Isadora[/name] [name]Junia[/name] [name]Violet[/name]
[name]Daria[/name] [name]Laurel[/name]
[name]Blythe[/name] [name]Camryn[/name]
[name]Isobel[/name] [name]Scott[/name]

and

[name]Miles[/name] [name]Oscar[/name]
[name]Quentin[/name] [name]Alexander[/name]
[name]James[/name] [name]Blair[/name]
[name]Oscar[/name] [name]Tobin[/name]
[name]Toby[/name] [name]Alexander[/name]
[name]Alister[/name] [name]Cormac[/name]

3

I really like [name]June[/name] as a first name!

4

I like these:

[name]Sawyer[/name] [name]James[/name]* or [name]Leo[/name] [name]James[/name]
[name]Finn[/name] [name]Oscar[/name] or [name]Charlie[/name] [name]Oscar[/name]*

Williow [name]Dorothy[/name] or [name]Adalaide[/name] [name]Dorothy[/name]*
[name]Clementine[/name] [name]June[/name] or [name]Delilah[/name] [name]June[/name]*