Henry of Harcourt and Bress make some decent ones. Otherwise my favourites are usually french - breton or normandy ciders. Cidre d'anneville is a favourite. These ar funkier than most AU ciders as they are fermented naturally (no added yeast). Some of the Weston's and Thatchers are OK and Henneys make some nice varieties including some vintage and still ciders (all UK).
I have seen most of those in Dan's at various points - otherwise specialty bottle shops will often stock them. French ones are usually in Champagne bottles. I also remember enjoying aspall and Sam Smith's make an OK cider too.