I need some anime recommendations

I am just depressed so much and like to torture myself. I'm in search of animes that have sad endings, like death or unrequited love but still remain calm and peaceful. Got any suggestions?

Some animes with similar vibes: Assassination classroom I want to eat your pancreas Banana fish Whisper me a love song (even though it's a feel good anime, half of the story revolves around kyou's death)

Open to all types of animes. More than welcome if it's a yuri or yaoi.