These are a couple combos we’ve come up with so far (in order of favor).
[name]Giselle[/name] [name]Maria[/name]
[name]Sylvie[/name] [name]Rosalinda[/name]
[name]Eloise[/name] [name]Claire[/name]
[name]Mary[/name] [name]Rosalinda[/name]
[name]Lourdes[/name] [name]Rosalinde[/name]
[name]Felicity[/name] [name]Rose[/name]
Our DD is [name]Juliette[/name] [name]Noelle[/name] and our last name is two syllables starting with “Ch”. (Note - my [name]MIL[/name]'s name is [name]Rosalinda[/name] and though I’m not a huge fan of the name, I’m willing to use it or a version of it to honor her.)
[name]Giselle[/name] [name]Maria[/name]: [name]Giselle[/name] is very pretty, but it doesn’t seem to fit as well with [name]Juliette[/name] as some of your other choices.
[name]Sylvie[/name] [name]Rosalinda[/name]: [name]Sylvie[/name] is lovely and I love it with [name]Juliette[/name]! I really like [name]Sylvie[/name] [name]Rosalind[/name], though [name]Rosalinda[/name] is okay since it’s a family name.
[name]Eloise[/name] [name]Claire[/name]: I love this! [name]Juliette[/name] and [name]Eloise[/name] are great together.
[name]Mary[/name] [name]Rosalinda[/name]: [name]Mary[/name] still just seems like the ultimate boring female name to me, especially compared to [name]Juliette[/name]. I much prefer [name]Maria[/name]. What about [name]Rosemary[/name]?
[name]Lourdes[/name] [name]Rosalinde[/name]: I’ve never liked [name]Lourdes[/name], and it’s too connected to [name]Madonna[/name]'s daughter for me. It’s also very heavy and clunky compared to [name]Juliette[/name].
[name]Felicity[/name] [name]Rose[/name]: [name]Felicity[/name] is very pretty and goes well with [name]Juliette[/name]; I’ve just never been a huge fan of it.
My favorites are [name]Sylvie[/name] [name]Rosalinda[/name] and [name]Eloise[/name] [name]Claire[/name], but you really can’t go wrong!
Have you considered [name]Rosalina[/name] or [name]Rosalia[/name] instead? I think they’re both much prettier and softer.
I actually really like all your firstname choices! My favs, and the ones I’ve considered myself are [name]Giselle[/name] and [name]Sylvie[/name].
Having said that I’m loving the simplicity of [name]Mary[/name] a lot recently and think it’d be adorable with the nn [name]May[/name] 
[name]Sylvie[/name] [name]Rosalina[/name] (without the D) would be my pick.
Beautiful choices!
~[name]Frances[/name]
[name]Giselle[/name] [name]Maria[/name] - I agree with pp, this doesn’t seem to go with [name]Juliette[/name] as well as others
[name]Sylvie[/name] [name]Rosalinda[/name] - [name]LOVE[/name] IT!! (I also like [name]Sylvie[/name] [name]Rosalina[/name])
[name]Eloise[/name] [name]Claire[/name] - very nice combo with your daughter’s name
[name]Mary[/name] [name]Rosalinda[/name] -nice,but not as fun as some other choices
[name]Lourdes[/name] [name]Rosalinde[/name] - seems a bit clunky
[name]Felicity[/name] [name]Rose[/name] - [name]Love[/name] this too!!
[name]Sylvie[/name] [name]Rosalinda[/name] is my favorite