I second [name_f]Freya[/name_f] [name_f]Rose[/name_f]! Other options could be [name_f]Freya[/name_f] [name_f]Bee[/name_f] or [name_f]Freya[/name_f] [name_u]Lane[/name_u]!
I definitely agree with Aerovis.
[name_f]Lola[/name_f] [name_f]Moon[/name_f] is adorable and goes perfectly with sibling names.
I kinda really like [name_f]Mavis[/name_f] [name_f]Moon[/name_f]. (I love [name_f]Mavis[/name_f] as is and I think [name_f]Moon[/name_f] would be a cool whimsical name to enhance the combo - Plus [name_f]Mimi[/name_f] would be a cute nn option if you’re into that).
I’d probably stay away from choosing another -e sounding name as it will help avoid it looking like you are trying for a “theme” for the triplets. I also think that it will help avoid confusion at home as when you call someone the last sound it often one of the more pronounced ones you hear when things like walls, stairs etc are in the way.
If you want to keep the -ee ending sound as with [name_u]Ruby[/name_u] and [name_f]Daphne[/name_f], my favorites from your list and other suggestions:
[name_f]Holly[/name_f]
[name_f]Ivy[/name_f]
[name_f]Elsie[/name_f]
[name_f]Lily[/name_f]
[name_f]Lucy[/name_f]
[name_f]Phoebe[/name_f]
[name_f]Chloe[/name_f]
[name_f]Heidi[/name_f]
[name_f]Lacey[/name_f]/[name_f]Lacy[/name_f]
[name_f]Callie[/name_f]
[name_u]Paisley[/name_u]
[name_u]Josie[/name_u]
You also have a trend for nature/color names, here are my favorites from your List and some more suggestions for first or middle names:
[name_f]Holly[/name_f]
[name_f]Ivy[/name_f]
[name_f]Fleur[/name_f]
[name_f]Flora[/name_f]
[name_f]Calla[/name_f]
[name_f]Fern[/name_f]
[name_f]Hazel[/name_f]
[name_f]Lilac[/name_f]
[name_f]Jade[/name_f]
[name_f]Gemma[/name_f]
[name_u]Sage[/name_u]
[name_u]Lake[/name_u]
[name_f]Laurel[/name_f]
[name_f]Olive[/name_f]
[name_f]Cricket[/name_f]
[name_f]Maple[/name_f]
[name_u]Skye[/name_u]
[name_u]Navy[/name_u]
[name_f]Sable[/name_f]
[name_u]Teal[/name_u]
[name_f]Opal[/name_f]
[name_f]Pearl[/name_f]
[name_u]Aspen[/name_u]
My favorites from your list that are celestial inspired names and some suggestions:
[name_f]Luna[/name_f]
[name_f]Moon[/name_f]
[name_f]Nova[/name_f]
[name_u]Vega[/name_u]
[name_f]Lyra[/name_f]
[name_f]Leda[/name_f]
[name_f]Selene[/name_f]
[name_u]Halley[/name_u]
[name_f]Stella[/name_f]
[name_f]Soleil[/name_f]
Some other suggestions I think goes with your style:
[name_f]Mila[/name_f]
[name_f]Myra[/name_f]
[name_f]Isla[/name_f]
[name_f]Jayla[/name_f]
[name_f]Eve[/name_f]
[name_u]Eden[/name_u]
[name_f]Luz[/name_f]
[name_f]Sena[/name_f]
[name_u]Rey[/name_u]/[name_u]Rae[/name_u]
[name_f]Brynn[/name_f]
[name_u]Sailor[/name_u]/[name_u]Saylor[/name_u]
[name_f]Noelle[/name_f]
Some of my favorite combos are:
[name_u]Navy[/name_u] [name_f]Luz[/name_f]
[name_u]Navy[/name_u] [name_u]Rae[/name_u]
[name_f]Holly[/name_f] [name_u]Teal[/name_u]
[name_f]Isla[/name_f] [name_f]Moon[/name_f]
[name_f]Heidi[/name_f] [name_f]Pearl[/name_f]
[name_f]Lily[/name_f] [name_u]Rae[/name_u]