The Killing of Sacred Deer is in my viewing queue.  Just haven't got to it.

I did try to watch Mandy, but it wasn't quite for me I guess.  I couldn't get into it.

Have you seen Cage in Joe?  An excellent film, but hard to watch, especially one scene that is so brutal because of its realism. 

Also, have you watched Too Old To Die Young?  It might be right up your alley.  I'm going to watch it again........