Parental trauma and how to heal books

i want to read a book that could be a non fiction self help book about general trauma, parents having bad relationship but still not divorcing, constantly having to walk on eggshells around them. I want to heal from all this so i thought maybe a self help book might be good to read even i never read those kinds of books.

But also open to suggestions about fiction books i would prefer classics that speak on these matters.