Evil Dead 2 is a black Comedy.
The Blackadder shows are black comedies.
Deadpool is a black comedy.
Coming to America is a black comedy (but in a totally different meaning, and did you know that 'best black comedies' is basically ungoogleble?)
Very Bad Things is a black Comedy.
Some of these are darker than others, much like Unbreakable and The Avengers are both superhero movies, but one is more superder than the other.