I quit drinking a while ago, but before I did I was exploring quite a few different things. Kind of amazing how much different alcohol there is.
Some highlights:
Belgian beers. Trappist stand out in this field but it is very difficult to go wrong. This encompasses very high quality beers (best in the world, IMHO) of dizzying variety. Sour (NOT bitter like an IPA...SOUR), fruit beers (lambic), wheat, doubles, triples, reds, browns, and more. Here is a nice guide.
Rye whiskey. several varieties exist and most of them very unique tasting. Search enough and you'll find some very unusual ones.
Vodka martinis. The drunk's drink.
Sipping tequila. Costco had some sort of house brand that was amazing. I only recommend agave but there are less good varieties.
Bloody Marys. Some places make these with so much food in them they could be a meal. I like spicy.
Ouzo chased by Coke is an amazing taste. Try it sometime if you never have.
Pepper vodka. I had some I bought in Ukraine (years ago) that was amazing. Pepper meaning spicy pepper not black pepper. Do not buy the absolut version it is shit.