Well, there are fanfics where the Dark Lord actually has a change of heart in the 'Harry Potter Dark Lord fanfic' genre. It might start with him seeing the error of his ways after experiencing a vision of a desolate future caused by his actions. Some fanfics also explore his relationship with his Death Eaters in a more complex way, showing that not all of them are blindly loyal and there are power struggles within the dark ranks.
In some 'Harry Potter Dark Lord fanfic' stories, the Dark Lord's magic is explored in greater detail. For example, his use of the Unforgivable Curses could be shown in a new light, perhaps he developed a new and even more terrifying curse. There could also be fanfics where the Dark Lord tries to infiltrate Hogwarts in a more cunning way than in the original books, like disguising himself as a new teacher and slowly influencing the students towards the dark side.
The best chapter pointer here is Chapter 131, "This Lady is Here to Travel". It opens with Just around mealtime, Director Sun came over pushing his small food cart. and closes on Hungry, they no longer cared about their appearance, quickly washed their....
A practical answer is Chapter 100, because it turns the idea into a concrete scene. The chapter opens with The barrage was about to die of laughter., adds pressure through Who would dare write a script like this!], and ends on Her eyes flickered slightly as she grabbed the hand..
A practical answer is Chapter 113, because it turns the idea into a concrete scene. The chapter opens with The next day, Jiang Lili was up before dawn as usual., adds pressure through Okay, keep them steady;
If you want the clearest chapter reference, go to Chapter 111. Early on, The main room's door was pushed open just a crack, and the head of the...; later, the chapter leans on Miss Jiang, you're still up, that's great..
Look to Chapter 89 for the clearest answer. It begins with Director Sun took a step back, "What's the rush?, keeps building through It's true about the go-kart costing one point, but this time we're using..., and lands on If anyone should be mocking her, it should be me.] Wen Jiaojiao stood to....
The best chapter pointer here is Chapter 97, "Can This Really Be Broadcast?". It opens with Suddenly, Jiang Li's livestream room was packed with people, and the... and closes on And you believe what she says?.
If you want the clearest chapter reference, go to Chapter 116. Early on, But before the audience in the live room had time to continue brewing the...; later, the chapter leans on Jiang Yan quickly entered the room, and a few minutes later, he dashed out....
Chapter 127 is the strongest chapter-level answer because it starts from Witnessing Jiang Li leave with a bucket, Jiang Yan refused to admit... and follows through on He Yun, who chose the codonopsis, became the one with the most challenging....
Chapter 119 is the strongest chapter-level answer because it starts from What is Princess Wen talking about? and follows through on For some reason, he always felt there was a mysteriously calming power....
Chapter 90 is the strongest chapter-level answer because it starts from Watching He Yun gradually take control of a tractor under professional... and follows through on Jiang Li finally let go of Jiang Yan's arm..