Literature's greatest wholesome characters

I have developed a habit to deal with grieve or other intense situations by reading some paragraphs about my favorite wholesome characters in literature. So far I have used the dialogues revolving around Atticus Finch (To kill a mockingbird), Samuel Hamilton (East of Eden) and Joe Gargery (great expectations) to help and guide me when I'm at a loss. Which other wholesome and caring characters would you recommend to me?