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.
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.
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.
Chapter 401, ""Youth Trainee" Premieres!", is the clearest early answer because it turns Don's situation into a concrete plot event.
Chapter 513, "A Public Stage", is the clearest early answer because it turns Taiqi Entertainment's situation into a concrete plot event. The chapter turns that into something concrete by moving from Everyone was sharing their experiences in a few words, the banter...
Chapter 231, "vLet Me Check Out the Strength of 5000", is the clearest early answer because it turns Huo's situation into a concrete plot event. The chapter turns that into something concrete by moving from Huo Xuan felt a burst of secret delight in her heart.
Chapter 238, "The Guests Were Dumbfounded, The Audience Was Excited", is the clearest early answer because it turns Lili's situation into a concrete plot event.
Chapter 222, "Oh, Miss Jiang Has Drawn It", is the clearest early answer because it turns Miss Jiang's situation into a concrete plot event. It opens with How come they're even live streaming in a reality show?! and closes on She was certain and sure that she saw scheming in them..
Chapter 67, "You Can Still Pick Mushrooms?!", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event. Early on, I'm pissed," Jiang Yan cursed again, "These people are too much,....
Chapter 223, "Pigpen Live Stream", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event.
Chapter 643, "Jiang Li Dominates the Trending Searches!", is the clearest early answer because it turns Trending Searches's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Qi Tianyu joyously carried his construction to the side to wait for...
Chapter 581, "Where is everyone? Where have they all gone?!", is the clearest early answer because it turns Ai Xiaochun's situation into a concrete plot event. The chapter gives readers a real answer by opening on Inside the tent, no one felt like sleeping.
Chapter 247, "Madam, Your 2000 Kilograms of Sweet Potatoes, Please Check and Accept", is the clearest early answer because it turns Sister Li's situation into a concrete plot event. It opens with Facts have proved that arch-enemies often understand each other the...