Actually, they have Deadpool, Logan, Days of the Future Past, First Class, and X2.
Guardians are great for a laugh. Thor Ragnarok is great fun. Black Panther was good, except for the ending. Infinity was great.
The point is, Marvel movies are fun, but they almost never even attempt to be anything more. Or different. They have no guts. Infinity War is the only movie with true guts. But even that, we'll see how Avengers 4 address the "death" of characters.