Fanfiction.net is also a good place to search. There are many Percy Jackson - related fanfictions on this site. Browse through the Percy Jackson category and look for titles or summaries that mention Percy defeating Gaia. However, be aware that the quality can vary, so you might need to do some sifting.
You can start by looking on popular fanfiction websites such as Archive of Our Own (AO3). It has a large collection of fanfictions from various fandoms, and you're likely to find some great 'Percy Defeats Gaia' stories there. Just use the search function and type in relevant keywords.
Another option is to check out some Percy Jackson fan communities on social media platforms like Reddit or Tumblr. Fans often share and recommend their favorite fanfictions in these communities. You can post a request asking for 'Percy Defeats Gaia' fanfictions, and chances are, you'll get some good suggestions from fellow fans.
If you want the clearest chapter reference, go to Chapter 85. Early on, Facing everyone's skepticism and curiosity, Jiang Li explained fluently:...; later, the chapter leans on The tomatoes are grown by them, and the eggs are also from their....
Chapter 46 is the strongest chapter-level answer because it starts from Upon hearing this, everyone but Jiang Li perked up with high alert. and follows through on Did you calculate the score incorrectly?!" And 13 points?!.
If you want the clearest chapter reference, go to Chapter 126. Early on, Wen Jiaojiao initially wanted to cause trouble.; later, the chapter leans on But when her gaze swept around and landed on Jiang Li, who was standing at....
A practical answer is Chapter 66, because it turns the idea into a concrete scene. The chapter opens with I can't take it anymore, why did the young master even find a pair of..., adds pressure through If adults can't sort out their own breakfast, what good are they?, and ends on Unable to find a.
If you want the clearest chapter reference, go to Chapter 74. Early on, Having seen Jiang Li's ID before, he knew that this person named Shiguang...; later, the chapter leans on And he only knew the answer to that one question..
Chapter 99 is the strongest chapter-level answer because it starts from Seeing the man approach, one of the individuals with a long scar across... and follows through on Just as she was considering whether to practice a set of boxing, her phone....
If you want the clearest chapter reference, go to Chapter 78. Early on, He Yun, too, tidied up and walked over to rest in the shade of a tree.; later, the chapter leans on After more than an hour of basking in the sun, his cheeks were....
If you want the clearest chapter reference, go to Chapter 130. Early on, This task, the first one, should have been his in the bag.; later, the chapter leans on However, just as he was about to get out of the water and take a short....
Look to Chapter 49 for the clearest answer. It begins with My phone!!!" Jiang Yan's roar echoed continuously through the mountains in..., keeps building through Watching helplessly as his latest-model phone was taken away by a..., and lands on Thinking this, Jiang Yan marched forward, pulled Jiang.
Chapter 101 is the strongest chapter-level answer because it starts from Jiang Li walked over to the slope where the two had fallen down. and follows through on If you encounter any trouble in the future, you can come to me.. The payoff is that the chapter closes with Could it be...