I'm not sure which is the absolute best, but 'Naruto and the Spectacle of Pain's Battle' is another one that stands out. It has some unique interpretations of the fight, like how Naruto analyzes Pain's techniques in real - time and how that affects his own future battles. The writing style is engaging and it keeps you hooked from start to finish.
You can try searching on fanfiction websites like FanFiction.net or Archive of Our Own. They usually have a wide range of Naruto fanfictions, and you might be able to find one about Naruto watching the fight with Pain there.
Well, Naruto himself might be really focused on Pain's motives in the fanfiction fight. Since he always tries to understand his opponents. Sasuke could be analyzing Pain's jutsu and thinking about how it compares to his own power. And Sakura might be worried about the destruction caused, just like she was in the original story when Pain attacked the village.
Naruto himself is obviously a central character. His growth and decisions will shape the story. Hinata could also be important as her relationship with Naruto might develop further. Shikamaru, being one of Naruto's smartest friends, could play a crucial role in planning for Konoha's future and strategizing against potential threats.
Some characters may gain new respect for Pain's power. If the fanfiction shows Pain in a more complex light, characters like Naruto could start to see him not just as an enemy but as a complex individual with his own reasons for fighting.
The biggest difference is the creativity of the fanfiction writers. In the anime, the fight follows a set storyline. But in fanfiction, anything can happen. For example, Naruto could suddenly gain a new power that was never in the anime. It's like a whole new world of possibilities.
One possible plot development could be Naruto focusing on rebuilding Konoha. He might use his newfound influence and power to inspire the villagers and make Konoha stronger than ever. Maybe he starts new training programs for the ninja of the village to better prepare them for future threats.
Konan could be really interesting. In some fanfictions, she might have a different backstory or motivation that affects the Naruto vs Pain fight. For example, she could be secretly trying to stop Pain from going too far in his destruction of the Leaf Village.
Jiraiya could be a great addition. Since he was Pain's teacher, his presence could add a lot of depth to the story. He could offer insights into Pain's past and also help Naruto understand Pain better.
Well, Naruto is obviously one of the main characters. He's the one who's going to be doing the beating. And Pain is also a main character in this context, as he is the opponent Naruto has to defeat.