There are so many good stories based around or with critical story line components reliant on Tarot.
The great thing about this is they already have such rich histories and stories it is not hard to extend that to the world building of any story. Whether you're a fan of the Deck of Dragons from the Malazan series or the embodied Arcana of the Tarot Sequence by K.D. Edwards each bring new and bright narratives.
Having recently finished the Immortal Vegas series by Jenn Stark I am inspired. I'm toying with ideas for a deck and maybe a story will arise from there.