Haunting narratives. Ghost stories are often about things that are spooky and haunting, so these words can be used to describe them in a different way. For example, a 'haunting narrative' might imply a story that stays with you long after you've heard it, much like a good ghost story does.
Phantom fictions. 'Phantom' is related to ghosts, and 'fictions' clearly indicates that it's a made - up story, which is what ghost stories are. This term can be used as an alternative way to refer to ghost stories.
A spook tale could be another word for ghost story.
Jokes. Jokes are short and humorous tales or statements that are meant to make people laugh, just like funny stories.
Tales. Tales can be long or short, but when we talk about long stories, 'tales' can also be used. For instance, 'fairy tales' can be quite long when they are fully developed, with complex plots and multiple characters.
Memoirs. Memoirs are written accounts of one's own life experiences, which is very similar to life stories. They often focus on specific periods or aspects of a person's life and are a great alternative term.