[name_f]Ivy[/name_f] [name_f]Florence[/name_f] and [name_m]Rueben[/name_m] [name_m]Hugo[/name_m]
Sorry silly autocorrect. ** [name_m]Reuben[/name_m]
Of the list in your signature, I think [name_f]Alice[/name_f] and [name_f]Madeleine[/name_f] would be the best options. I’d avoid another nature name for [name_f]Ivy[/name_f]‘s sister as it would be a bit matchy, but other than that, familiar classic but not mega-popular seems like your best option to work with your childrens’ names.
[name_f]Ivy[/name_f], [name_m]Reuben[/name_m] and…
[name_f]Charlotte[/name_f]
[name_f]Harriet[/name_f]
[name_f]Esther[/name_f]/[name_f]Elspeth[/name_f]
[name_f]Clara[/name_f]
[name_f]Lydia[/name_f]
From your signature names, I think [name_f]Alice[/name_f] would be a fine sibling name for [name_f]Ivy[/name_f] and [name_m]Reuben[/name_m]'s sister. Here are some other suggestions.
[name_f]Celeste[/name_f]
[name_f]Mabel[/name_f]
[name_f]Greta[/name_f]
[name_f]Sybil[/name_f]
[name_f]Junia[/name_f]/[name_f]Juno[/name_f]
[name_f]Juliet[/name_f]
[name_f]Charis[/name_f]
[name_f]Petra[/name_f]
[name_f]Adele[/name_f]
[name_f]Georgia[/name_f]
[name_f]Clara[/name_f]
[name_f]Lydia[/name_f]
[name_f]Willa[/name_f]
[name_f]Leila[/name_f]
[name_f]Tabitha[/name_f]
[name_f]Dinah[/name_f]
[name_f]Ada[/name_f]
[name_f]Bridget[/name_f]
[name_f]Winifred[/name_f]
[name_f]Beatrix[/name_f]
[name_f]Cleo[/name_f]/[name_f]Clio[/name_f]
[name_f]Lyra[/name_f]
[name_f]Stella[/name_f]
I think we’d be better help to you if we had some more parameters! But names I think sound good with your sibset are…
[name_f]Abigail[/name_f]
[name_f]Annabel[/name_f]
[name_f]Amelia[/name_f]
[name_f]Charlotte[/name_f]
[name_f]Claire[/name_f]/[name_f]Clara[/name_f]/[name_u]Clare[/name_u]
[name_f]Delia[/name_f]
[name_f]Eliza[/name_f]
[name_f]Ella[/name_f]
[name_f]Fiona[/name_f]
[name_f]Hazel[/name_f]
[name_f]Jane[/name_f]
[name_f]Laurel[/name_f]/[name_f]Lauren[/name_f]
[name_f]Louisa[/name_f]
[name_f]Madeline[/name_f]
[name_f]Margaret[/name_f]
[name_f]Martha[/name_f]
[name_f]Matilda[/name_f]
[name_f]Ophelia[/name_f]
[name_f]Phoebe[/name_f]
[name_f]Sara[/name_f]
[name_f]Willa[/name_f]
Is this in the vein of what you’re looking for? If so, I could work on combos.