If you liked this one, I highly recommend all of Star Wars Rebels--some of what happens in TLJ is directly prefigured in Rebels, including Leia's vacuum trick. (The dreadnought design's ancestral spacecraft also shows up for the first time in Rebels.) But this movie and the show are asking a lot of the same questions, though they don't always arrive at the same answer. The Phasma helmet thing is also a specific callback to an AMAZING but very spoiler-y moment in Rebels.