This is quite a list. I've seen some of these films, but of the ones I've missed A Ghost Story intrigues me most. So I'll be watching that one soon.
I wonder if the Grief Movie Club serves the same function as the Blues. At first glance, they seem negative. (Nobody loves me but my mother, and she might be jivin' too.) But they can also be healing if only because they're a way to acknowledge a level of sadness that can only be addressed through mirroring.
While watching the trailer for A Ghost Story, I was reminded of Truly, Madly, Deeply with Alan Rickman and Juliet Stevenson. It also deals with the death of a woman's intimate companion.
Also, I watched a 1992 film version of Virginia Woolf's Mrs. Dalloway recently, which is a really sad steam-of-conscious story and a difficult one to translate into film. But I really enjoyed this version as well as The Hours, which is based on it.