I like
Eleanor and
Abigail as a sibset...and the combo
Eleanor Abigail. I prefer
Ellie as a nn for
Eleanor but
Ella works. I've always liked
Abigail and I do love the nn
Abby. (The first time I heard the name
Abigail was in childhood, from a character in a book who had a ribbon tied around her neck to keep her head from falling off!)