I like Italian dark roasted beans. Before looking for a particular brand you should consider whether you like dark or light roasted beans.

First you want all Arabaca beans. Second go for the high end brand and start off with a medium roast then go to lighter or darker roast depending on your taste. Third the lighter the roast the more the caffeine. Fourth Colombian is very rich.
Brands to try: Community, Eight o'clock, Seattle's Best. Consumers reports rates the best tasting coffee to be Eight o'clock Colombian. I recommend Community dark roast; that is my favorite. If you have a local roast house use there beans because freshness is key. Do not keep beans longer than two weeks and keep them in the refrigerator.
P.S. If you get coffee and chicory use less coffee because the chicory intensifies the flavor.

Community Brand, New Orleans blend

Alway make sure you are buying 100% Arabica. If you have a Trader Joes in town I would suggest going there. You can buy small cans of coffee and they have lots of different roasts and beans from different parts of the world that you can try for not a lot of money. My favorite at the moment is a Nigerian blend that is medium roasted but has a full body flavor without a lot of acidity. Starbucks is a good one, kind of pricey but they are all pretty tasty, Peets Coffee is also good, but still pricey. MillStone is okay, I think it is acidic. First you need to find out if you like a dark roast or a medium roast. Then just start sampling. You'll know right away what kind of bean you prefer. I personaly do not like Moka Java. No, it's not chocolate. It is a blend of Moka beans from Ethipia and beans from the island of Java. It's a bit rich for me. I would start with a good medium breakfast blend. Always grind right before you brew and use cold water. I use two tablespoons of coffee for each cup of water. You can use a little less if needed.

Lavazza Oro 100% Arabica Espresso beans