The fanfiction could center around Naruto being a huge fan of Palkia. He could be on a quest to find Palkia and when he does, Palkia is in some sort of trouble. Naruto then uses his determination and skills to help Palkia out. In the process, they become friends and Naruto gets to understand the power of Palkia better, and perhaps even uses that knowledge to better his own world.
Well, it could be about Naruto somehow getting involved with Palkia. Maybe Naruto discovers a new realm where Palkia exists and has to form an alliance with it to fight a common enemy. He might learn some new powers from Palkia that are different from his regular ninja skills.
In the 'naruto is palkia fanfiction', perhaps Naruto is transported to the world of Palkia by some strange magic or jutsu gone wrong. There, he has to adapt to the new environment which is very different from Konoha. Palkia could initially be skeptical of Naruto but as they interact more, they realize they can learn from each other. Naruto could teach Palkia about the concept of friendship and loyalty which are strong in the ninja world, while Palkia could show Naruto the secrets of its own power and the mysteries of its world.
Chapter 754, "Evil Can Never Defeat Justice", is the clearest early answer because it turns Miss Shu Yan's situation into a concrete plot event. The chapter turns that into something concrete by moving from After the court trial ended, everyone immediately threw a party for...
Chapter 553, "His Love Runs Deep", is the clearest early answer because it turns Team's situation into a concrete plot event. It opens with His gaze shifted to Luo Xuan's empty hands, and Ai Xiaochun's... and closes on We could use this to our advantage..
Chapter 677, "Worshiping Sister While Avoiding Them", is the clearest early answer because it turns Jiang Shixu's situation into a concrete plot event. The chapter gives readers a real answer by opening on You should learn from your sister; she's made her own fortune and is...
Chapter 742, "Brother Policeman, Look at Them!", is the clearest early answer because it turns Merit's situation into a concrete plot event. Early on, Fang Kai became panicked as things were not developing in his favor..
Chapter 638, "The person was really eliminated by me!", is the clearest early answer because it turns Shang Shuyue's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Outside the wooden hut, several people were startled after a message...
Chapter 664, "Record a Major Mistake", is the clearest early answer because it turns Jiang Shixu's situation into a concrete plot event. The chapter turns that into something concrete by moving from Shiguang and Xi Yang are fighting? to Tai Fan, calm down;
If you want the clearest chapter reference, go to Chapter 1. Early on, Jiang Li, I'm warning you, don't set your sights on Yinwan anymore, or...; later, the chapter leans on Following a bout of tinnitus, she struggled to open her eyes and finally....
Chapter 516, "Choosing You as an Undercover Agent is Pretty Stupid", is the clearest early answer because it turns Shang Shuyue's situation into a concrete plot event. Early on, Why are you skulking around and observing us?" Jiang Li cut straight....
Chapter 532, "Little Lolita Beats Up Jungle Python?!", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event.
Chapter 465, "I Want Black Truffles", is the clearest early answer because it turns Zheng Xun's situation into a concrete plot event.