If you go to a place like Teavana, they can have suggestions for ones you might like.
I find that if I like the smell of a tea, I like the taste of a tea. So that might be somewhere to start.
Also adding sugar and milk or cream can help if you find it too strong.
Just don't let it sit too long, most teas (green, black, and herbal - esp. fruity ones) get 'tinny' tasting to me.
My faves are English and Irish breakfast, roobios teas, lipton makes a citrus green tea that I really like.