I like
Elah (and also Ela) pronounced the same as
Ella. To me it's obvious that it's a Hebrew name that just happens to be pronounced the same as
Ella, but non-namesnerds might think it was a creative attempt at varying
Ella.
I don't like EE-la, it sounds like a strange feminisation of
Eli to me.
Sabra is alright but I think of cactuses for some reason. Sidra is nms sound-wise, and Thisbe's pronunciation is counter-intuitive and I think of thistles. So I guess none of those are really my style lol.