I don't really have a list of such fanfictions at hand. You could try searching on some popular fanfiction websites like Archive of Our Own or FanFiction.net. Use keywords like 'Harry Potter', 'twin', and 'idiot' to narrow down your search, but be prepared that you might not find a lot of high - quality ones with such a potentially controversial premise.
Sorry, I'm not aware of any specific fanfictions with that exact theme. There are so many Harry Potter fanfictions out there that it's hard to point out ones with this particular idea.
Unfortunately, I can't recommend any similar fanfictions. It's not a very common or well - known theme as far as I know. You might have better luck asking in Harry Potter fan communities or forums where fans might be more likely to know of such unique takes on the story.
Chapter 306, "I Believe Whatever Miss Jiang Says!", is the clearest early answer because it turns Zhou's situation into a concrete plot event. Early on, But Jiang Li seriously shook her head, "No, Aunt Zhou, this matter....
Chapter 361, "Kids Make Choices, Adults Want It All!", is the clearest early answer because it turns Tong Yi's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Everyone knows that Suqing's forte is Double-sided Embroidery," Miss...
Chapter 236, "The Murderer Returns to the Scene of the Crime Theory", is the clearest early answer because it pushes Automatic Activation Device into a new phase or setting. Early on, The short-haired youth beside them chimed in, "That's right, senior,....
Chapter 369, "Who Makes Him the Omnipotent Male Lead?", is the clearest early answer because it turns Liu Suqing's situation into a concrete plot event. It opens with But..." Lin Manru's tone shifted again, "Our studio has become...
Chapter 782, "Luck Swapped?", is the clearest early answer because it turns Xi Yang's situation into a concrete plot event. The chapter turns that into something concrete by moving from Ah?????" "Sorry, I take back what I just said, this is beyond the... to Is this not our Sister Qing?.
Chapter 328, "Persuading the Old Master", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event. The chapter turns that into something concrete by moving from Jiang Li's authoritative words stunned the old man.
Chapter 416, "Such a Sensitive Nose, Born in the Year of the Dog?", is the clearest early answer because it turns Guan Xiong's situation into a concrete plot event. It opens with Yu Li's words successfully choked Lady Nina. and closes on Why did she have to end up with such a dumb teammate?!.
Chapter 279, "The Sudden Blaze", is the clearest early answer because it turns Wen Jiaojiao's situation into a concrete plot event. It opens with After getting a good scolding, Jiang Yan resigned himself to lying...
Chapter 258, "Explosive! Jiang Li and Director Sun Are Having an Affair!", is the clearest early answer because it turns Explosive's situation into a concrete plot event.
Chapter 372, "Finish the Wine and I’ll Let You Leave", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Jin Si Yue suddenly realized that his wrist was back in proper...