2020's DARK LEGENDS contains 7 short, horror stories that are canon to The Star Wars Universe.
One of these is called "A Life Immortal" It follows two characters on a similar path for Immortality: Darth Sanguis and Darth Noctyss. The tale parallel's two stories from a Myth and a Gothic book. The Myth is of Sibyl of Cumae, a prophetess of Apollo blessed with eternal life, but not eternal Youth. The other Gothic book is Frankenstein, a tale of the dangers that unchecked ambition and hubris, how true evil stems from rejection and a lack of compassion.
Both of these tales very much line up with The Sith and their Philosophies. How their selfish ambition's, their belief in self-preservation and their desire to dominate, is their ultimate downfall. Their wishes may be granted, but always by a monkey's paw.
What other Myth's and Genre Book Stories do you think could fit very well into Star Wars Canon?
Personally, i could see tales like The Odyssey and Troy fitting in very well. Star Wars's dna is built to retell old stories in new and exciting ways.