There are some. You can find them on various fanfiction websites. A lot of them play with the idea of Joffrey being transported to the Harry Potter universe. In some, he tries to assert his authority in a world he doesn't understand, leading to all sorts of conflicts with the established characters and magic system. It's an interesting concept that has attracted a number of fanfiction writers.
Sure. The 'Joffrey Baratheon x Harry Potter' fanfictions are a niche but creative area. Some fanfics might have Joffrey as a sort of anti - hero in the Potterverse. He could be a Slytherin perhaps, using his cunning in ways that are both familiar to his 'Game of Thrones' character and new in the context of Hogwarts. It's really fascinating to see how different writers blend these two very different fictional worlds together.
A practical answer is Chapter 231, because it turns the idea into a concrete scene. The chapter opens with Huo Xuan felt a burst of secret delight in her heart., adds pressure through My apologies, my apologies." "Does the bigwig want his fortune told too?"..., and ends on A cool sports car was.
The best chapter pointer here is Chapter 266, "He Really Deserves to Die!". It opens with Upon hearing this, the deputy director's expression also turned serious. and closes on Now I see why Jiang Li despises her brother so much, utterly unreliable!"....
The best chapter pointer here is Chapter 263, "Jiang Li Won the Medal for Outstanding Individual?!". It opens with Southwest Wildlife Protection Association V: On the evening of July 10 of... and closes on But when she saw Wen Jiaojiao and Qi Tianyu and others standing up to....
A practical answer is Chapter 259, because it turns the idea into a concrete scene. The chapter opens with While the villagers of Chixia Village were all immersed in the revelry of..., adds pressure through Wasn't she the same girl who had come to them with a group of villagers..., and ends on It.
If you want the clearest chapter reference, go to Chapter 239. Early on, I can't believe it, I thought the live broadcast was over, but here's a...; later, the chapter leans on Now, they have to vote for who transformed the most successfully..
Chapter 264 is the strongest chapter-level answer because it starts from Jiang Li first reassured her mother, then opened the chat box with Shen... and follows through on [Do your faces hurt, you rumormongers?.
Look to Chapter 278 for the clearest answer. It begins with People from the fan club also got word that Jiang Li was soon to return to..., keeps building through Early in the morning, as the president of the fan club, Lu Xingchao..., and lands on How about we throw a party instead?" He Yun was.
Look to Chapter 276 for the clearest answer. It begins with After listening to Jiang Li's words, Shen Lan's brow furrowed again., keeps building through Jiang Li, I think I might know who this person is., and lands on Don't overthink it and get some rest." Jiang Li nodded..
Chapter 227 is the strongest chapter-level answer because it starts from Your Four Pillars of Destiny is very strong, with wealth, authority, and... and follows through on Your three palaces are prosperous, and correspondingly, your marriage....
A practical answer is Chapter 269, because it turns the idea into a concrete scene. The chapter opens with The next morning, Shen Lan's personal account posted a Weibo., adds pressure through Too excited to remember to switch to his alternate account, he..., and ends on At that time, people.