I think that
Noelle and
Selah would sound very cute as siblings. You would likely have to correct people on the pronounciation, but it's not difficult to say at all once you know. I often have to spell my name for people because there are a few different ways to do it, and it's not really a big deal.
My favourite of the ones you have there is
Selah Juliet. Maybe:
Selah BethanySelah CheriseSelah EmmalineSelah GraceSelah JoySelah MarionSelah RhiannonSelah Yvette