One possible plot could be that Harry grows up in a loving and magical home. He gets to learn magic from his parents at a very early age. His father, James, might teach him Quidditch skills right in their backyard. His mother, Lily, could pass on her knowledge of potions and herbology. They would also protect him from the dark forces that are still out there, perhaps leading to some epic battles where the family stands united against the remnants of Voldemort's followers.
The plot would change drastically. Harry would not be living with the Dursleys, so there would be no need for him to escape that horrible situation. Voldemort might have a harder time targeting him as his parents would be on high alert. There would be no letter - hunting drama. Also, his relationship with Snape would be different as his father was Snape's rival. His parents could have taught him some advanced magic from a young age, which would make him stand out at Hogwarts in a different way than in the original story.
If Harry Potter was raised by his parents, he would have a very different personality. He would be more outgoing and less of a loner. His parents would have taught him all about the wizarding world from a young age, so he would be much more knowledgeable. Also, he might not have had the same kind of bond with Hagrid, as Hagrid's role in introducing him to the wizarding world would be diminished. In the fanfiction, we could see a more carefree Harry, not having to deal with the trauma of growing up an orphan.
He would be more secure. In the original story, Harry grew up without his parents and was constantly seeking a sense of family. If raised by his parents, he would have that family bond from the start. He would likely be more outgoing and less introverted as he would have a stable home environment.
One common theme is self - discovery. Harry has to figure out who he is without the influence of his parents. For example, in many such fanfictions, he might discover new magical abilities or a different heritage. Another theme is the struggle for acceptance. Since he's being raised by a 'top', there could be high expectations, and he has to strive to be accepted in this new environment.
In such a fanfiction, Naruto would likely grow up with a strong sense of family. He'd be trained by his father, Minato, from an early age, perhaps becoming a prodigy even faster. His mother, Kushina, would fill his life with love and warmth, and he might not have the same underdog status as in the original. He could be more confident and less of a prankster, having a stable home environment.
Well, 'Raised by the Elite' is also a great one. In this fanfiction, Harry is abandoned at a young age and is then raised by a group of the most powerful wizards in the magical world, who are considered 'tops'. It shows how Harry adapts to this new life, learns different magic, and how his relationships with other characters are re - shaped.
The plot could start with Naruto growing up in a happy family. He'd learn about the village and ninja ways in a more positive environment. His first missions might be more successful as he has his parents' advice. As he grows, he might face threats to the village earlier, but with his family by his side, he'd be better equipped to handle them.
On a more magical level, reviving the dead is against the natural order of things in the wizarding world. This could attract unwanted attention from magical authorities or even dark forces. Some might see Harry's act as a dangerous precedent and try to either stop him or use his new - found power for their own evil purposes.
In some fanfictions, Harry might use extremely powerful and ancient magic. Maybe he discovers a long - lost spell during his adventures that has the power to reverse death. For example, he could find a spell hidden in a forgotten corner of the Hogwarts library that was created by a powerful wizard in the past but was deemed too dangerous to be used.