Some Harry Potter - focused fan communities on social media platforms might also be a good place to ask. For example, there are groups on Facebook or Reddit dedicated to Harry Potter fanfiction. Post a request asking if anyone knows of any 'Harry Saves Vernon' fanfics and you may get some useful links.
You can start by looking on popular fanfiction websites like FanFiction.net or Archive of Our Own (AO3). Just use the search function and type in 'Harry Saves Vernon' and you should get a list of relevant fanfics.
There are also some smaller, specialized fanfic archives that might have such stories. However, these can be a bit harder to find. You could try doing a general web search using specific keywords like 'Harry Saves Vernon fanfic archive' and see what comes up.
Look to Chapter 82 for the clearest answer. It begins with Jiang Li gave her a fleeting glance., keeps building through When did we ever make a private deal?" "Just now!" Wen Jiaojiao defended..., and lands on And so, aside from Wen Jiaojiao, the remaining five set off, each....
A practical answer is Chapter 46, because it turns the idea into a concrete scene. The chapter opens with Upon hearing this, everyone but Jiang Li perked up with high alert., adds pressure through There must be some mistake with the crew's calculation, I demand a..., and ends on Did you calculate.
If you want the clearest chapter reference, go to Chapter 52. Early on, The village chief and the woman behind him exchanged a glance, "This...; later, the chapter leans on might not be a good idea, you guys are still filming, we don't want to....
Chapter 96 is the strongest chapter-level answer because it starts from Jiang Li's words seemed absurd, yet there also seemed to be a trace of... and follows through on Xu Ling couldn't contain her soft sobbing, "How could this happen?.
If you want the clearest chapter reference, go to Chapter 100. Early on, The barrage was about to die of laughter.; later, the chapter leans on [Hahahaha, help, why is the young master always being chased!] [Next door,....
Chapter 59 is the strongest chapter-level answer because it starts from After walking for about two or three hundred meters, the old man stopped... and follows through on My phone, my cigarettes, my champagne, oh how I miss you......" He swore,....
If you want the clearest chapter reference, go to Chapter 83. Early on, When they received the task, the three of them were already sharpening...; later, the chapter leans on He Yun had originally wanted to try making braised fish under Jiang Li's....
The best chapter pointer here is Chapter 85, "They must have been bought off by Jiang Li!". It opens with Facing everyone's skepticism and curiosity, Jiang Li explained fluently:... and closes on This fresh and vibrant flavor blended perfectly..
Chapter 75 is the strongest chapter-level answer because it starts from The ordinary people in the livestream were all stirred up by this scene. and follows through on But, being a half-baked practitioner is just fine..
Chapter 52 is the strongest chapter-level answer because it starts from The village chief and the woman behind him exchanged a glance, "This... and follows through on And at this point, they might as well try a desperate remedy for a....