wow, right off the bat you listed my go to dream name!
hallie was meant to be
but before i saw that, lucy
i personally don’t vibe with margot, something about the sound and look doesn’t click with me.
i’m not sure if it makes sense, but your list has a general style / vibe / sound to it that’s soft and sweet, with a lot of Es and and Ls.
i personally think margot doesn’t fit in as well, though i could also see it paired off with isobel and imogen. that’s where i’d draw the line, these are one vibe, and the other names are another vibe. as in, they might not fit the same kind of person - i’d leave it up to baby girl, and see what looks like her the most.