I really love the name
Phoebe, because it's mythological , related to the moon, small and simple. It gives me the image of a blonde and generous woman, but I think that this name could work on a red or brown-haired person.
I would pair it like this:
Phoebe VeronicaPhoebe AthenaPhoebe Maddalena/Magdalena
Phoebe Caterina Phoebe Agatha(also inverted)
My potential sibsets:
Phoebe and
LunaPhoebe and
LucreziaPhoebe and
Laetitia
Phoebe and
ElouanPhoebe and
HeliosPhoebe and
Finley(check the meanings of these names and you will understand why I chose them to form a sibset ;-))
Among your favourite names, I would choose the little, natural, flowery and pure
Lily and the precious and brief
May.