I've always loved
Ruth, and would gladly use it.
Most of your mn choices would not be mine.
Ruth Eponine, for instance, though it looks and sounds wonderful. I don't enjoy the repeated u sounds in
Ruth Juliette: what about
Ruth Gillian?
My go-to combo is
Ruth Penelope;
Ruth Philippa,
Ruth Felicity,
Ruth Celia also work for me. I knew a
Ruth Margaret and a friend's daughter is
Ruth Mary: I prefer
Margaret, but
Mary is a family name, so ...