Well, one possibility could be chaos in the ninja world. Naruto is a symbol of hope and peace. His death might lead to power struggles among different villages as they try to fill the void. Villains could become emboldened and start new attacks.
Well, it could lead to chaos in the Hidden Leaf. His friends like Sasuke might go on a vengeful rampage. They would be filled with rage and guilt, thinking they could have prevented it. The village would also be in turmoil, as Naruto was their hero and a symbol of hope.
Well, it would be a really dark plot. Maybe Sasuke, consumed by his thirst for power or revenge, finally overcomes Naruto in a brutal battle. This could lead to a world in chaos as Naruto was the hope for many. The Hidden Leaf Village would likely be in a state of despair, with all the friends of Naruto vowing revenge on Sasuke.
Well, perhaps in this fanfiction, Naruto's family was brainwashed by an enemy. They no longer recognized Naruto as their own and instead saw him as a threat to their new 'false' ideology. So they decided to kill him. This would completely shatter Naruto's image of family as something warm and loving, and would be a really cruel take on the Naruto universe.
It could be that Naruto adopts Naruko when she is very young. He would then become a father - figure to her. He'd make sure she has a proper education at the ninja academy. He'd also protect her from any threats, like the Akatsuki. As Naruko grows up, she might start to have her own ideas about how to be a ninja, which could lead to some interesting conflicts and resolutions between her and Naruto.
In such a fanfiction, the plot could start with the two clans deciding on the arranged marriage for political reasons. Naruto might be hesitant at first, as he has feelings for other characters. Hanabi, on the other hand, would be under family pressure to make it work. As they start to spend time together, they gradually discover each other's good qualities. Naruto's positive energy could start to influence Hanabi, and she might become more open - minded. Eventually, they could fall in love and face the challenges of uniting their different worlds together.
In a 'naruto gets mei pregnant fanfiction', the plot could involve Naruto going on a mission to Mei's village where they initially clash due to different views. But as time passes, they see the good in each other. Their relationship blossoms secretly at first. Once Mei gets pregnant, it could cause a stir in both Konoha and her village. Naruto might then strive to bring peace between the two villages for the sake of their unborn child.
In this fanfiction, Naruto could gain the ability to communicate with the bijuu on a deeper level. As a result, they start to see him as not just a jinchuriki but as a friend or even more. The plot could involve Naruto trying to protect the bijuu from threats while also dealing with the complex relationships that form within the 'harem' situation.
In a fanfiction where Naruto gets Konan pregnant, it could lead to a complex plot. First, it would shock both the Hidden Leaf and the Akatsuki. Naruto would have to face the judgment of his village as his relationship with Konan was unexpected. Konan, on the other hand, might face rejection from the Akatsuki. Their child could be a symbol of hope for a new alliance between the two former enemy groups. Naruto would strive to protect his new family while also trying to maintain peace in the ninja world.
One possible plot could be that during a very intense and dangerous training session, Jiraiya attempts a new and powerful jutsu. Naruto, being eager to learn and prove himself, jumps in too soon to assist or observe closely. Jiraiya loses control of the jutsu slightly and it accidentally hits Naruto, leading to his death. This would then cause a huge upheaval in the ninja world. All of Naruto's friends and allies would be in shock and disbelief. Sasuke might be filled with rage and vow to seek revenge, not fully understanding it was an accident at first. And Jiraiya himself would be consumed by guilt, perhaps even going into a self - imposed exile as he couldn't bear to face the consequences of what he had done.
In this kind of fanfiction, Naruto could also end up leaving the village in search of answers about his abandonment. Along the way, he might encounter other outcasts or people with their own troubled pasts. They could form a sort of makeshift family or team. This journey could lead to Naruto discovering new powers or secrets about his heritage that were previously unknown to him. He may return to the village later with a new perspective and new abilities, ready to prove himself despite being abandoned.