Now that you know what happens to Anakin in "Revenge of the Sith," you can jump right into the "Star Wars: The Clone Wars" animated series, which follows the adventures of Anakin, Obi-Wan, and Ahsoka. The show does an amazing job of fleshing out the characters we're already familiar with from the live-action films and it introduces us to brand-new characters that get the live-action treatment later on (Cad Bane, Bo-Katan, Saw Gerrera, etc.).
The series helps fans further understand why Anakin eventually becomes Darth Vader. It also gives a lot more attention to the Clones, and there's even an arc during the sixth season that hints at them betraying the Galactic Republic and Jedi Order through Order 66. Finally, the last few episodes of the series help explain where Ahsoka was during the events of "Revenge of the Sith."
