I actually have a book called Tarot Spells by Janina Renee. It's an older book but if you can find a copy it's definitely worth it. The spells are kind of long and involved and some have very long chants, but they are also very powerful spells. I haven't done every one of them, but all the ones I did worked very well.
If you wanted to write your own, it shouldn't be too hard, I'd just say make sure you know how to pick a significator and study the meanings of the cards to make sure you pick the right ones for your purpose. Then lay out the cards in a way that makes sense (for example in the divorce spell, the cards representing each person are facing away from each other, it is important to remember the tarot works with strong visuals) and visualize your goal, then say whatever chant you've written (that's how it's done in the book anyway). So I hope that helps.