One possible interesting plot could be Madara, in his Edo Tensei form, somehow regaining his full power and challenging Naruto not in a fight to the death but in a battle of wits. Naruto, on the other hand, tries to find a way to either seal Madara permanently or make him see the error of his ways. For example, Naruto could use his talk - no - jutsu to try and convince Madara that his quest for power has only led to destruction.
A plot where the Edo Tensei of Madara has some unforeseen side effects. Instead of being the powerful and ruthless fighter he was, he has moments of his former self, the one before he was consumed by hatred. Naruto, sensing this, tries to bring out more of that old Madara. He shows Madara the new ninja world that has been created, with peace treaties and cooperation among the villages. This makes Madara question his past actions and his view of the ninja world.
Perhaps a plot where Naruto and Edo Tensei Madara have to team up against a greater threat. This new enemy could be a powerful being from another dimension that has the power to destroy the ninja world. Madara, despite his initial reluctance, realizes that he needs to work with Naruto to save the world he once wanted to rule. They combine their unique skills, like Naruto's Rasengan and Madara's Susanoo, to fight this new foe.
Naruto might initially be on guard and hostile towards Edo Tensei Madara. But as Naruto is, he would also try to understand Madara's motives. He could start by trying to talk to Madara, asking him why he still clings to his old ways even in his undead state.
Many fanfictions also touch on the theme of the afterlife. Since Edo Tensei is a form of resurrection, questions about what it means for Madara to be brought back, and how it relates to the afterlife in the Naruto universe are often explored. There could be stories that delve into his relationship with the person who resurrected him and what their end goals are in relation to his Edo Tensei state.
A great plot in 'naruto edo tensei fanfiction' might be an alternate universe where the edo tensei is not a jutsu used for combat but for a more peaceful purpose like resurrecting historical shinobi to teach the new generation. This could lead to all kinds of cultural exchanges and unique training sessions for characters like Naruto and his friends. Also, a plot where edo tensei characters rebel against their summoners due to having their own wills and agendas would be exciting.
One great Naruto Edo Tensei Madara fanfic is 'The Resurrected Conquest'. It really delves into what Madara could have done if he had more time during his Edo Tensei state. The story has some amazing fight scenes and really captures Madara's character well.
In certain fanfic concepts, Naruto could learn Edo Tensei from Kabuto. Kabuto, having mastered the jutsu, might decide to teach Naruto for some reason. It could be because he sees Naruto's potential to use it in a more positive way compared to how he misused it. Naruto, with his strong sense of justice, would then try to modify the jutsu to be less evil - like not using it to bring back people against their will.
Another plot could involve the Edo Tensei characters crossing over into a different anime world. Maybe they enter the world of One Piece. There would be a clash of powers and ideologies. Naruto characters might be shocked by the Devil Fruits in One Piece and the different forms of piracy. The story could focus on how they team up or fight against the pirates in this new world.
One idea could be the clones having unique abilities different from the original edo tensei summons. For example, they might be able to combine jutsus in unexpected ways.
A great plot could be that Kushina's Edo Tensei resurrection is only temporary. Naruto has to race against time to learn some important lesson or power from her before she disappears again. This could add a lot of emotional depth and urgency to the story as Naruto tries to make the most of the time he has with his mother.
You can try fanfiction websites like FanFiction.net or Archive of Our Own. Just search for 'Naruto Edo Tensei Madara' on their search bars, and you'll be presented with a variety of fanfictions. Some might be action - packed, focusing on Madara's battles during his Edo Tensei state. Others could explore his backstory or his relationships with other characters in new and interesting ways.
The popularity of Naruto Edo Tensei Madara fanfic lies in the character of Madara himself. He's such a complex and powerful character in the Naruto universe. When brought back by Edo Tensei, it adds another layer of intrigue. Writers can explore different scenarios with him, like how he would interact with the modern - day ninja world.