Sibling names for this hypothetical family

General Name Discussion
1

I am searching for a name for a girl and a boy to go along with this sibset.

____ [name_f]Grecia[/name_f]
[name_m]Malcolm[/name_m] [name_m]Dayne[/name_m]
[name_u]Evelyn[/name_u] [name_f]Keila[/name_f]
[name_u]Dexter[/name_u] [name_m]Raphael[/name_m]
_____ [name_m]Gideon[/name_m] (Twin with [name_u]Dexter[/name_u])
[name_u]Ariel[/name_u] [name_f]Tasia[/name_f]

I was thinking:

Girls:
[name_f]Fiona[/name_f]
[name_f]Nadia[/name_f]
[name_f]Adele[/name_f]

Boys:
[name_m]Alfonse[/name_m]/[name_m]Alphonse[/name_m]
[name_m]Kristof[/name_m]
[name_u]Kai[/name_u]
[name_m]Vincent[/name_m]

Any suggestions are welcome!

2

[name_f]Fiona[/name_f] [name_f]Grecia[/name_f] and [name_m]Vincent[/name_m] [name_m]Gideon[/name_m]

3

I have slightly changed the names since this post:

____ [name_f]Grecia[/name_f] (maybe [name_f]Nancy[/name_f])
[name_m]Malcolm[/name_m] [name_m]Dayne[/name_m]
[name_u]Vivian[/name_u] [name_f]Keila[/name_f]
[name_u]Dexter[/name_u] [name_m]Gideon[/name_m]
_____ ([name_m]Atlas[/name_m], [name_m]Atticus[/name_m])
[name_f]Harlow[/name_f] [name_f]Tasia[/name_f]