In fanfiction, Naruto sacrificing himself for Obito could be a very emotional and dramatic concept. It might show Naruto's ultimate selflessness, believing that Obito is worth saving at the cost of his own life. This could be due to Naruto seeing the good in Obito that others might not, like the part of Obito that was once a kind - hearted shinobi.
When Batman sacrifices himself in fanfiction, it can also be a way to explore the darker side of Gotham. Maybe his sacrifice was in vain, and the city falls deeper into crime and corruption. Or perhaps it leads to a new kind of hero emerging, inspired by Batman's last act. It could also show how the villains react, some might be glad that their nemesis is gone, while others may feel a strange sense of loss as Batman was always a worthy opponent.
Well, it could be that Naruto sacrifices himself to seal away a dark and ancient curse that is threatening to destroy not only the ninja world but all of existence. He realizes that his unique connection to the tailed beasts and his strong willpower make him the only one who can perform this self - sacrificing sealing jutsu. So, he says his goodbyes to his friends, family, and the village he loves and gives up his life to save everyone.
Peter could sacrifice himself to stop a deadly virus from spreading. He might be a scientist who discovers that his own body can be used to create a cure, but it will cost him his life. So, he decides to go ahead with it to save the world.
One popular fanfic could be 'The Ultimate Sacrifice'. In it, Harry's self - sacrifice is a very emotional and heroic act. He does it out of deep love and friendship for Hermione.
Perhaps in the fanfiction, Naruto gives his life energy to Boruto to save him from a deadly curse. Boruto then has to deal with the newfound power within him, which is a mix of his own and his father's. He may struggle to control it at first but eventually learns to use it for good. This could also lead to a rift between Boruto and some of the villagers who blame him for Naruto's death.
It could be a long - lost Uchiha with powers beyond that of Madara. This Uchiha could have been in hiding, gathering power and knowledge, and his ultimate goal is to reshape the world in his own dark image. Naruto realizes that the only way to stop him is by sacrificing himself.
I'm sorry I can't directly recommend a specific 'Percy sacrifices himself for Artemis' fanfic. But you can try searching on fanfic platforms like Archive of Our Own (AO3). There are tons of fanfics there, and by using relevant keywords in the search bar, you might be able to find one that suits your interest.
In such a fanfiction, the plot could involve Naruto sacrificing himself to save the Hidden Leaf Village from a powerful and seemingly unstoppable enemy. Maybe it's a new, more menacing form of the Akatsuki that has emerged with a doomsday - like jutsu. Naruto, being the hero he is, decides that the only way to protect his friends and the village is by using a self - destructive jutsu that nullifies the enemy's power but at the cost of his own life. His sacrifice could lead to a period of mourning in the village, with his friends like Sasuke feeling guilty for not being there to prevent it and vowing to carry on Naruto's legacy of peace.
In some fanfictions, if Harry Potter sacrifices himself, it could lead to a dark and desolate wizarding world. His friends would be left to pick up the pieces, mourning his loss deeply. For example, Hermione might be driven to find a way to reverse his sacrifice through her vast knowledge, while Ron would be filled with a sense of vengeance towards the forces that led to Harry's death.