Book recs that are sad yet hopeful

I want to read books that are sad but hopeful. Books that leave me filled with gratitude but I don't want it to be too depressing. I want a sweet spot where it makes you feel sad so you question how hard it is out there for others and how you need to be content and grateful for what you have.

Have been feeling a little lost lately, want to find a book to help me ground myself and count my blessings.