Clio - Very nice, haven't met any.
Lily - I love this name, beautiful, but think it is overused.
Eva - Another one I adore, but there are many of them around right now.
Chloe - A bit dated, I don't really see many small ones (was very popular when I were at school in the 00s)... I actually think it's very pretty.
Emma - Dull... I like Imma though.
Fiona - I have a bad association, I'm not keen
Lilou - Quite pretty, haven't heard it in life.
Shelby - Never met one. I think it's really cute for a child but also works as an adult.
Ruby - Lovely, very common atm though again.
Isabelle - Beautiful, I think it's nicer than Isabella.
Cassandra - It has a dated feel to me but it is a very classy name. Cassie is a beautiful nn.
Isabella - Much prefer Isabelle
Emmie - Cute, better than Emma. Have you considered Emer?
Ellie - Common and boring to me.
Eleanor "Ellie" - I don't like Eleanor or Ellie.
My top 5 from your list would be:
Isabelle
Shelby
Clio
Chloe
Lilou