I think young Sasuke would have a very intense reaction. He was so consumed by his hatred for Itachi at that young age. A Sasuke vs Itachi fanfiction would be like a trigger for him. He would be eager to see how the fictional fight is portrayed. If Sasuke in the fanfiction is shown as strong, it might fuel his own ego and make him strive even harder to become powerful. However, if the fanfiction shows Itachi as superior, it could enrage him. He might feel that it undermines his own goal of defeating Itachi and he might even want to find the writer to correct their 'wrong' view.
A really interesting fanfiction could be set in an alternate universe where Sasuke never left the village in Naruto Shippuden. He and Sakura start to develop feelings for each other much earlier. They go through all the challenges of being young ninjas together, and their relationship blossoms as they face various threats to the village side by side, and they eventually get married and have a family.
One great 'Naruto Itachi Sasuke fanfiction' is 'The Brothers' Bond'. It delves deep into the complex relationship between Itachi and Sasuke. It shows how their past actions and unspoken emotions shape their interactions. The story is full of intense moments and also some heart - warming reconciliations.
In a fanfiction set in an inn, Itachi might be there to pass on some crucial information to Sasuke and Naruto. He could choose the inn as a neutral and unexpected place. Sasuke would be hesitant to trust Itachi, but Naruto's presence might make him more receptive. They could engage in a battle of ideologies, with Naruto representing hope and friendship, Sasuke representing vengeance and Itachi representing sacrifice. The inn becomes the backdrop for this intense encounter.
Itachi's story is special because he is a complex character. He was forced to make tough choices, like sacrificing his clan for the greater good of the village. His actions were misjudged by many, but in reality, he was a self - sacrificing hero.
You can try streaming platforms like Crunchyroll. They usually have a wide range of anime including Naruto Shippuden episodes related to Itachi's story.
He might feel anger. Since he was so set on revenge against Itachi, any portrayal that didn't match his view of himself as the victor could make him angry.
Sasuke's story wraps up in the final arcs of Naruto Shippuden. It's a complex and emotional ending that ties up his character development and relationships.