Well its nice to see
Kelly R. branching out. Unfortunately (or not), I do agree that
Elijah sounds better on a boy (with the nn
Eli pron. EE LIE (like DIE)), but its for superficial reasons (I could care less about masculine, feminine, etc. and would never insist that someone couldn't use a name, thats just so defiant & self centred)& I think
Elliott could work for a girl (with the nn
Ellie) as could
Eleanor,
Ella, or
Elle.
BTW: I should clarify that when it comes to the name
Cora, for my own sanity I have to urge caution (long story, LOL) & so I'll acknowledge we all have our weaknesses.