Case's of Dorset used to do a good dry cure bacon ..... went out of business unfortunately.... Product was too expensive I suppose. Last I heard was when my lil bruv left their employ some years ago and most of their bacon went to Fortnum & Mason or the big hotels.
You pay more for it but personally I'd go to a proper butcher ~ not Sainsbugs, Waitrose, Tesco, Morrisons or Asda who, despite their so called "Butchers in Store" haven't a clue. Mostly they just weigh and package whatever the warehouse sends them ~ A good local butcher has a reputation to preserve and therefore won't sell crap.
Same applies to their in-store bakeries ~ not a real baker in sight ~ just people in white coats cooking part baked stuff made in a factory.
