You can start by looking on fanfiction websites like Archive of Our Own (AO3). It has a large collection of fanfictions, and you can use the search function to specifically look for 'Star vs the Forces of Evil' fanfics. There are also some fanfiction sections on general forums dedicated to the show.
Well, FanFiction.net is another great place. There are many talented writers who post their 'Star vs the Forces of Evil' fanfiction there. Just type in the name of the show in the search bar, and you'll get a list of fanfics. You might also want to check out Tumblr. Sometimes, fans post links to their favorite fanfictions there, or even write short fanfics directly on their blogs.
The best chapter pointer here is Chapter 140, "Did Jiang Li Finally Crash?". It opens with In the evening, the setting sun was like blood, dyeing the entire earth a... and closes on I was just joking, just joking." Seeing that Wen Jiaojiao had no intention....
Look to Chapter 165 for the clearest answer. It begins with How come everyone else got a solid six points, and he ended up with just..., keeps building through Director Sun spread his hands, "Our staff calculated the total score with..., and lands on Various explosive Weibos sprang up like.
If you want the clearest chapter reference, go to Chapter 179. Early on, Everyone originally had no expectations for the gifts that Su Yinwan...; later, the chapter leans on Although they felt there might be a catch, a few people still curiously....
The best chapter pointer here is Chapter 167, "Roommates Became Fans of Jiang Li after a Variety Show?!". It opens with By the experimental field, Qi Tianyu was quite helpless as he watched Wen... and closes on Even when getting into the car, Qi Tianyu was still savoring the moment in....
If you want the clearest chapter reference, go to Chapter 169. Early on, Everyone: "What?!" Seeing the shocked and bewildered expressions on their...; later, the chapter leans on This is a transformation show after all; you can't rely on Jiang Li for....
Chapter 168 is the strongest chapter-level answer because it starts from Su Yinwan spoke those words with a pitiable expression, then lowered her... and follows through on The Gu Family had strict family education; even if Gu Yu was the only heir....
Chapter 171 is the strongest chapter-level answer because it starts from The afternoon rain stopped and started again, making the air even more... and follows through on They weren't any big shots; did they deserve her to personally run over to....
A practical answer is Chapter 159, because it turns the idea into a concrete scene. The chapter opens with Seeing the red light of the camera turn on, Su Yinwan looked at the..., adds pressure through The moment the door closed, he straightened his back, and his originally..., and ends on Shang.
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 122. Early on, Damn, are we supposed to find the points card in the mud?!" He had just...; later, the chapter leans on To salvage his image, he had deliberately dressed up before leaving the....