Jason Grace could be a great addition. His leadership skills and ability to control the winds could be used to combat Gaea's earth - based powers. He could also be a good friend to Percy, trying to pull him out of any dangerous situations involving Gaea. And then there's Grover. Grover's connection to nature could give him some unique insights into Gaea. He could be the one who senses when Gaea is up to something and warns Percy, adding a bit of comic relief to the otherwise serious situation with Gaea.
Well, Annabeth could be added. She would be really important as she is Percy's love interest. Her intelligence and strategic mind could play a big role in dealing with Gaea. Maybe she tries to find a way to break Gaea's hold on Percy if Gaea has some sort of power over him. Another character could be Nico di Angelo. His powers over the dead might be useful in uncovering secrets about Gaea's past and weaknesses. He could also be a voice of reason for Percy when Percy is in a difficult situation with Gaea.
The best chapter pointer here is Chapter 53, "Save People!". It opens with Night had fallen over Chixia Village, eerily void of any human sounds. and closes on Wait, did this kid accidentally fall into the water?] [Help, this camera....
If you want the clearest chapter reference, go to Chapter 88. Early on, She wanted to refuse, but didn't have the courage to do so.; later, the chapter leans on The Chen'an Entertainment she worked for was currently the largest....
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 60 is the strongest chapter-level answer because it starts from What's with Jiang Yan, treating his own sister Jiang Li like this?" "He... and follows through on And in traditional characters?" "What else?.
A practical answer is Chapter 106, because it turns the idea into a concrete scene. The chapter opens with Thinking of this, He Yun nodded with a hint of anticipation., adds pressure through The Jiang Family fell from grace, shattered into pieces, and became an..., and ends on Jiang Li's fingers.
Look to Chapter 86 for the clearest answer. It begins with After over an hour of fuss, it was finally time to eat., keeps building through Qi Tianyu, starving, crazily scooped up his curry rice into his mouth., and lands on But then her expression became resolute and arrogant..
A practical answer is Chapter 55, because it turns the idea into a concrete scene. The chapter opens with Su Yinwan hadn't expected that, in just one day, Jiang Li's reputation had..., adds pressure through This person was even a top gaming streamer with tens of millions of fans,..., and ends on.
Chapter 54 is the strongest chapter-level answer because it starts from Five minutes later, the people of Chixia Village, who had received the... and follows through on She was also polite and friendly, and to top it off, she was good-looking,....
Look to Chapter 88 for the clearest answer. It begins with She wanted to refuse, but didn't have the courage to do so., keeps building through The Chen'an Entertainment she worked for was currently the largest..., and lands on Let's go," Jiang Li said in a soft voice..
Chapter 80 is the strongest chapter-level answer because it starts from Jiang Yan and Wen Jiaojiao, one so smug he was almost ascending to the... and follows through on arrogant princess with Princess Disease, I'm totally for it, fam.] [Hahaha....