I am wondering what your choice will be….
There is a jungle of black dresses out there, so the choice is not easy. Generally, I try to buy my dresses in different shops so each of them is unique, but if I need something fancy for a budget version I always start in a Jane Norman shop. If you fancy one of Jane Norman dresses, you can find some more options here.
Be aware that their sizes are a little smaller, so it’s better to get a size bigger than a smaller one.