Well, 'Sword Art Online: Phantom Bullet' is also on the list. It has a different feel compared to the others as it focuses on a new type of virtual reality game within the Sword Art Online universe, with a new set of characters and challenges related to a gun - based game.
Sure. 'Sword Art Online: Progressive' is a great one from the list. It delves deeper into the floors of Aincrad that were not fully explored in the original story, providing more in - depth character development and a more detailed look at the challenges within the game world.
Another one is 'Sword Art Online: Alicization'. It takes the story in a whole new direction, with new settings like the Underworld. The plot gets really complex and interesting as it involves advanced concepts of artificial intelligence and virtual reality.