I crossed off any that were close to [name_f]Eloise[/name_f] [name_f][/name_f]- eg [name_f]Amelia[/name_f] [name_f][/name_f]- [name_f]Milly[/name_f] and [name_f]Eloise[/name_f] [name_f][/name_f]- Ellie; [name_f]Isabelle[/name_f] [name_f][/name_f]- [name_f]Belle[/name_f] / [name_f]Issy[/name_f] and [name_f]Eloise[/name_f] Elle/Ellie/ Issy; [name_f]Iris[/name_f] and [name_f]Eloise[/name_f] pretty close visually (not a deal breaker but just to decipher); and [name_f]Lila[/name_f] could be almost used as a nickname for [name_f]Eloise[/name_f] [name_f][/name_f]- gets lost next to / after the glam & spirited, [name_f]Eloise[/name_f] (and I think anyway will get lost in the L names of her age).
[name_f][/name_f][name_f]So[/name_f] I would go Margot/Margaux (I prefer [name_f]Margaux[/name_f] spelling) or [name_f]Camille[/name_f] [name_f][/name_f]- [name_f]Camille[/name_f] also has [name_f]Milly[/name_f] and means [name_f]Milly[/name_f] & [name_f]Ellie[/name_f] but doesn’t have the [name_f]Elle[/name_f] in the name as [name_f]Amelia[/name_f] does so sounds more distinct [name_f][/name_f]- and you have the charming [name_f]Cami[/name_f] as a nickname option too.
[name_f][/name_f][name_f]My[/name_f] third choice would be [name_f]Georgia[/name_f] (it goes well, I just prefer [name_f]Margaux[/name_f] and [name_f]Camille[/name_f] as names and think they make a pretty, [name_f]French[/name_f] chic set 
).
[name_f]So[/name_f] my order would be:
[name_f][/name_f][name_f]Eloise[/name_f] & [name_f]Margaux[/name_f] (or Margot)
[name_f][/name_f][name_f]Eloise[/name_f] & [name_f]Camille[/name_f]
[name_f][/name_f][name_f]Eloise[/name_f] & [name_f]Georgia[/name_f]
[name_f][/name_f][name_f]Eloise[/name_f] & [name_f]Iris[/name_f]
[name_f][/name_f][name_f]Eloise[/name_f] & [name_f]Amelia[/name_f]
[name_f][/name_f][name_f]Eloise[/name_f] & [name_f]Isabelle[/name_f]
[name_f][/name_f][name_f]Eloise[/name_f] & [name_f]Lila[/name_f]
[name_m]Other[/name_m] names: [name_f]Beatrice[/name_f], [name_f]Arabella[/name_f], [name_f]Constance[/name_f], [name_f]Harriet[/name_f], [name_f]Madeleine[/name_f], [name_f]Sabina[/name_f].