Big blocks of Swiss chocolate

Nearly 100 days ago I brought a 5KG (I think 10lb) block of Belgium chocolate, now I want to try Swiss chocolate

Wondering on good quality Swiss chocolate, I am based in the uk so will need somewhere that ships it, wondering if anyone knows any good brands?

By good quality I mean I want chocolate 😅 not something that would have such a low amount of cocoa it would nearly not class as chocolate and instead they use a whole load of oil and whatever. But I would like a milk chocolate block. I hear more popular brands of general chocolates are skimping more on cocoa and using more oil and sugar or smth like that, which is not what I want.