We grow Cobra, a climbing French bean rather than a dwarf one. We also grow a taller pea these days - Alderman.
Never had much joy with bell peppers - usually only getting a couple on a plant and never the size of ones Tesco's have. we've grown Topepo Rosso for the past couple of years. We found Hansel aubergine at the same time as the pepper and I've been very pleased with it.
I don't think main crop potatoes or main crop onions are worth growing. You've probably got these in your "etc." but I'll mention Charlotte and Anya for potatoes. For your onions next year, you might like to consider shallots.