Seconded. If you live in a metropolitan area, you will likely have a Teavana or other chain/mom & pop tea store where you can go in and smell or try all of their varieties.

You'll easily find half a dozen different teas you like ranging from the classic black teas to exotic varieties that taste like supermarket sugar drinks (like strawberry lemonade - one of my favorites at teavana). The latter usually require less a 5g bump of sugar to bring them to the level of retail drinks.