Well, a plotline could be that Harry is raised by elves in a hidden part of the Forbidden Forest. Because of this, he has a closer connection to nature and magical creatures. When he finally enters Hogwarts, he has a different perspective on things like Care of Magical Creatures class. He might also be more in tune with the magic of the forest, which could lead to some interesting encounters with dark creatures, as he has a unique understanding of how to use the forest's magic to protect himself.
In some 'Harry Potter raised by elves fanfiction', a possible plotline is that the elves teach Harry their language and ancient magic. This gives him an edge in his later adventures as he can access magic that other wizards don't know. Also, the elves' strong sense of loyalty and family could influence Harry, making him more empathetic towards those who are often overlooked in the wizarding society, like the house - elves themselves.
One possible plotline could be that the Potter elves teach Harry unique magic that is different from what he would learn at Hogwarts. For example, they might show him ancient elf magic that gives him an edge in dealing with dark forces. Another could be that the elves raise Harry with a strong sense of family and loyalty, which makes him more empathetic towards those who are often overlooked in the wizarding world, like house - elves themselves.
Perhaps Harry, being raised by house elves, has a very different view of the wizarding world's social hierarchy. He may see the unfair treatment of house elves as completely unacceptable from a young age and strive to change it. This could lead to him getting into conflicts with some of the more traditional pure - blood families who rely on house - elf labor.
One interesting plotline could be how Harry's view of the wizarding world changes. Since elves have a different culture, he might see things like house - elf slavery in a new light. He could grow up with a more empathetic view towards the underprivileged in the wizarding society.
One possible plotline could be that Charlus Potter imparts unique magical knowledge to Harry. Since he's from an older generation, he might teach Harry some long - forgotten spells or magical traditions. Another could be that Harry grows up with a different social circle, perhaps more connected to the old pure - blood families through Charlus. And also, Charlus might train Harry in a more traditional and strict way of magic compared to what Harry would have experienced at Hogwarts with Dumbledore.
One possible plotline could be Harry learning dark magic in Hell but then using it for good in the wizarding world. For example, he might master a powerful spell that can only be learned in Hell to defeat Voldemort once and for all.
One possible plotline could be Harry being raised by characters from a different magical universe, like the Narnia characters. This might lead to him having a very different understanding of magic and his role in the wizarding world. Another could be if he was raised by characters from a superhero universe, which would likely result in him having some unique combat skills in addition to his wizardry.
One interesting plotline could be how Harry's personality is shaped in a very different way compared to the original series. Maybe he becomes more street - smart and less trusting due to the influence of the'slashers'. Another could be the new magical abilities or skills he might develop under their guidance.
One interesting plotline could be Harry learning unique magic from Firenze. Since Firenze has different perspectives on magic compared to human wizards, he might teach Harry some ancient or forgotten spells. Another could be Harry's relationship with the centaurs. He might have to navigate their complex society and politics while being raised by Firenze, which could lead to all sorts of adventures and conflicts.
Well, perhaps a plotline where the character raised by the fairy has to hide their origin from others at Hogwarts. This could lead to some really tense and secretive moments. Also, there could be a plot where the fairy that raised the character has some sort of past connection to a powerful wizard or dark magic, and this connection starts to affect the main character as they study at Hogwarts. Maybe they start to uncover secrets about Hogwarts that are related to the fairy's past.
One interesting plotline could be how Harry's magic develops in a very different environment. Growing up with wolves might make his connection to nature - based magic stronger. For example, he could have an uncanny ability to communicate with forest animals more easily than in the original story.