Sad book recommendations

Looking for recommendations for sad books. I love books that explore grief, the complexities of human nature, broken families, exploring ethical dilemmas with morally grey characters

A current favourite author is John Boyne, particularly The Hearts Invisible Furies and A History of Loneliness

Some other favourites:

– Hamnet, Maggie O’Farrell

– The Dutch House, Ann Patchet

– A Little Life, Hanya Yanagihara

– The Nightingale, Kristin Hannah

Currently reading

– Shuggie Bain, Douglas Stuart