Since you didn't mention what you already like, I'll just mention some of my favorites. I started out buying a large selection of tea in the sample tins. I now have a total of 16 teas on my "must always have on my stash." All but 3 of them are from Adagio.
Black: Keemun Encore, Darjeeling #22, Golden Monkey, Black Mango.
White: White Peony (A Cappella,) Blueberry, Pear, Peach, Tangerine.
Rooibus: Vanilla, Orange, Macadamia
Herbal: Berry Blues
Chai: Marsala Chai
Local Tea Store Blend - this is a combination of 11 different whites, greens and rooibus.
I am feeling the need to add a green or two to this list. I tried many oolongs and as much as I wanted to like them, none of them made it to the top 16. I should also add that Adagio's Irish Breakfast in terrific. I start everyday with about 3-5 cups.
I suggest you buy as many different samplers from Adagio as you can afford and do some taste testing. You will quickly learn where your tastes fall.