Here are some of the most popular ones:
* 4730 Harry Potter and the Chamber of Secrets - The Chamber of Secrets (2002): This was the main set for the movie, featuring the Chamber itself, a giant spider, and minifigures of Harry, Ron, Ginny, and Tom Riddle.
* 4731 Harry Potter and the Chamber of Secrets - The Flying Car (2002): This set features the iconic Ford Anglia flying car, along with minifigures of Harry, Ron, and Gilderoy Lockhart.
* 4732 Harry Potter and the Chamber of Secrets - The Dueling Club (2002): This set includes a duel scene with Harry, Draco, and Gilderoy Lockhart, as well as a potion table and a secret chamber.
* 75952 Ford Anglia Escape (2019): A newer version of the flying car set, this one includes more detail and updated minifigures.
* 75953 Hogwarts™: Chamber of Secrets™ (2019): This set includes the Chamber of Secrets, a basilisk, and several characters, including Harry, Ron, Ginny, and Tom Riddle.
There are also other smaller sets based on the Chamber of Secrets, like the 75954 Hagrid's Hut: Buckbeak's Rescue (2019) which includes a scene from the film.
These are just some of the LEGO sets based on Harry Potter and the Chamber of Secrets. You can find more information about these and other sets on LEGO's website or at your favorite online retailer.