Twin names

My Husband and I already picked one of our twin names.

Nausicaa: (Burner of ships) Pronounced as Naw-[name_u]Si[/name_u]-Kah, she is a Greek princess from the Odyssey book by [name_m]Homer[/name_m] and is one of our favorite movies Nausicaa and the Valley Of the Wind

Nausicaa’s middle name is [name_f]Elaine[/name_f].

But we are having trouble deciding for her twin sisters name.