I enjoy Lindt's chili dark chocolate, it's a treat I get now and then. But it's pretty dark, so if your bitter tolerance is low I'd avoid it. I'm actually on the lookout for other brands myself that carry spicy chocolates. I'd like to find some good American made spicy chocolate, because of course aiming to support local is good.

I popped over to Michigan into Traverse City recently (the cherry capital!) and got some lovely locally made chocolate cherries for friends and family. It tells me I need to visit more fun places before this country explodes into nuclear war haha