The safest way is to try different coffees in some good coffee shops. We don't know what coffee do you like. Do you need nutty or chocolaty tastes only? Or do you like fruity notes? What do you prefer? By tasting differently roasted coffee brewed using different methods, you can find out what do you need.
I heard coffee is less effective if taken immediately after waiking up. That's why I wait for one and a half hour before drinking coffee.