Chimay is one of the 6 trappist abbey brewery. I can say that all of them offers excellent brews. There's only one I haven't tasted to far, Westleveren (something like that) because it's damn hard to find and is often cited to brew the best beer in the world, the 10. As for me, the Trappiste Rochefort 10 must be the best I've ever tasted. Take my word for it, I've tasted hundreds of brews and that one is outstanding. At the beginning of the month, I went to montreal's mondial de la bière, a beer fest, and tasted over 50 different beers, yeah, I love beer, good beer. Remember when I traveled down to florida, it was a beer trip eh!
The chimay red is my favorite one of the chimays, nice pick. In the trappist beers, I'd also recommend the Westmalle Triple.
Other than that, it's really just a matter of what you can get where you live. We have some really nice micro breweries here in Quebec, there's quite a few gems there, but you won't be able to buy one of them unfortunately.
Try to stay away from lagers and pilsners, 99% of those are horse piss. Ales, that's the way to go. Then, try different styles to see what you like. Weizen, bock, IPA, stout, abbey triple, etc...
Last minute suggestions: Duvel, Mort Subite framboise, Dogfish head 90 minutes IPA, Paulaner hefe weissbier, Samichlaus Bier.