Susannah!
I know some people hate the longer name on the bc idea but I think it's for the best. I remember thinking Annie was really dowdy only 5 years ago (when I first heard of one). Now it's grown on me. So it's a bit like Edith. It's a name that either IN fashion or out of it. Annabel/Anna are less of the moment. I know some older than me, my age, and children too.
There is Johanna too but for some reason I really don't like that.