Sour beers I like include the true Belgian gueuzes: Cantillon, Hanssens, Drie Fonteinen, Boon (hard to find) and Lindemans Cuvée René. Lindemans fruit lambics are really neither lambic nor fruit, but, as you say, a cloying, unnaturally fruity-sweet alco-pop. I have just seen Timmermans Oude...