This is the only spinoff I have any interest left in seeing:
Beast Wars, Dark Lords of the Sith, the Sith War, and Redemption were all excellent, so I’d adapt those, although I’d remove the “Sith poison” that turned Ulic and I’d make Freedon Nadd the first human to interact with the Sith species (meaning no Dark Lords before Exar). I’d definately drop Golden Age of the Sith and Fall of the Sith Empire.