Well. I can tell you before I started drinking coffee black (I still don't regularly but now I tolerate it so I don't have to tell people how I take it on set) I was really impressed with Hawaiian Kona coffee because it literally is sweet without doing anything.

Other than that I like it dark dark. Like the darker the better so I can taste my coffee through all the cream I normally do 🤣🤣🤷🏽 but also like yeah I just love the taste of coffee and obvi I bet I'm addicted to caffeine 🤷🏽

So I find myself gravitating towards dark stuff and I think the darkest I remember have been Nicaragua, l Ethiopia, and wherever David Lynch gets his beans because that shit is like that black paint that's so black it makes things look like a2D drawing.