I’m due in a few months with my second boy, but already dreaming of maybe one day having a girl
What would you name a sister for [name_u]Finn[/name_u] (b), and [name_u]Ellis[/name_u] (b)?
I’m thinking maybe:
[name_u]Finn[/name_u], [name_u]Ellis[/name_u] & [name_f]Briony[/name_f]
[name_u]Finn[/name_u], [name_u]Ellis[/name_u] & [name_f]Margot[/name_f]
[name_u]Finn[/name_u], [name_u]Ellis[/name_u] & [name_f]Daphne[/name_f]
[name_u]Finn[/name_u], [name_u]Ellis[/name_u] & [name_f]Poppy[/name_f]
Any other suggestions? [name_m]Just[/name_m] for fun, obvi! But maybe one day 
[name_f]Margot[/name_f] is my favorite from your list.
Some other suggestions:
[name_u]Marlow/name_u, [name_f]Lola[/name_f], [name_f]Vivienne[/name_f], [name_f]Rosalie[/name_f], [name_f]Phoebe[/name_f]
I love all of the sibsets you’ve come up with, except for maybe [name_f]Poppy[/name_f].
Perhaps…
[name_f]Zoe[/name_f]
[name_f]Edith[/name_f]
[name_f]Lillian[/name_f]
[name_f]Delia[/name_f]
[name_f]Mira[/name_f]
[name_f]Eva[/name_f]
[name_f]Romilly[/name_f]
[name_f]Rosalyn[/name_f]
[name_f]Georgia[/name_f]
[name_u]Winter[/name_u]
[name_f]Nina[/name_f]
[name_f]Louise[/name_f]
[name_f]Briony[/name_f] is definitely my favorite on your list!
[name_u]Finn[/name_u], [name_u]Ellis[/name_u] & [name_f]Delilah[/name_f]
[name_u]Finn[/name_u], [name_u]Ellis[/name_u] & [name_f]Brielle[/name_f]
[name_u]Finn[/name_u], [name_u]Ellis[/name_u] & [name_f]Pippa[/name_f]
[name_u]Finn[/name_u], [name_u]Ellis[/name_u] & [name_f]Tess[/name_f]
My favorite from your list is definitely [name_f]Margot[/name_f].
[name_u]Finn[/name_u], [name_u]Ellis[/name_u] & [name_f]Nora[/name_f]
[name_u]Finn[/name_u], [name_u]Ellis[/name_u] & [name_f]Harlow[/name_f]
[name_u]Finn[/name_u], [name_u]Ellis[/name_u] & [name_u]Arlo[/name_u]
[name_u]Finn[/name_u], [name_u]Ellis[/name_u] & [name_u]Arden[/name_u]
[name_u]Finn[/name_u], [name_u]Ellis[/name_u] & [name_f]Claire[/name_f]
[name_u]Finn[/name_u], [name_u]Ellis[/name_u] & [name_f]Greer[/name_f]
[name_u]Finn[/name_u], [name_u]Ellis[/name_u] & [name_u]Darcy[/name_u]
[name_u]Finn[/name_u], [name_u]Ellis[/name_u] & [name_f]Delphine[/name_f]
[name_u]Finn[/name_u], [name_u]Ellis[/name_u] & [name_f]Lola[/name_f]
I especially think a name with an ‘r’ sound goes well with the two boy names!
I do like [name_f]Briony[/name_f] a lot!
[name_u]Finn[/name_u], [name_u]Ellis[/name_u] and…
[name_f]Pippa[/name_f]
[name_f]Lilly[/name_f]
[name_u]Ainsley[/name_u]
[name_u]Cali[/name_u]
[name_f]Lucy[/name_f]
[name_f]Gia[/name_f]
[name_f]Isla[/name_f]
[name_f]Mia[/name_f]
[name_f]Willa[/name_f]
[name_f]Nora[/name_f]
Fun thread! I like [name_u]Finn[/name_u], [name_u]Ellis[/name_u], and either [name_f]Poppy[/name_f] or [name_f]Bryony[/name_f] best, I think, although I like [name_u]Finn[/name_u], [name_u]Ellis[/name_u], and [name_f]Margot[/name_f] together a lot, too! (BTW, I adore [name_u]Ellis[/name_u] for a boy! I recently added [name_u]Ellis[/name_u] [name_m]Benjamin[/name_m] [name_u]James[/name_u] to my own list.)
[name_u]Finn[/name_u], [name_u]Ellis[/name_u], and [name_f]Grace[/name_f]
[name_u]Finn[/name_u], [name_u]Ellis[/name_u], and [name_f]Georgina[/name_f]
[name_u]Finn[/name_u], [name_u]Ellis[/name_u], and [name_f]Magnolia[/name_f]
[name_u]Finn[/name_u], [name_u]Ellis[/name_u], and [name_f]Violet[/name_f]
[name_u]Finn[/name_u], [name_u]Ellis[/name_u], and [name_f]Fiona[/name_f]
[name_u]Finn[/name_u], [name_u]Ellis[/name_u], and [name_f]Zoe[/name_f]
[name_u]Finn[/name_u], [name_u]Ellis[/name_u], and [name_f]Audrey[/name_f]
[name_u]Finn[/name_u], [name_u]Ellis[/name_u], and [name_f]Helena[/name_f]
Good luck!