Another plotline could be about his relationship with other wizards when he finally enters the wizarding world. Since he was raised by elves, he might not fit in immediately. He could face prejudice from some wizards who look down on his 'elf - influenced' upbringing, but also make some great friends who are intrigued by his unique background.
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.
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.
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 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.
One interesting plotline could be an elf - led rebellion against the unfair treatment of house - elves. They might organize secretly and try to gain equal rights within the wizarding society. Another could be an elf who discovers a long - lost magic that has the power to change the balance between the magical and non - magical worlds, and the main characters from the Harry Potter series have to decide whether to support or oppose the elf.
One interesting plotline could be the exploration of the relationship between the main character and the elves. Maybe the main character discovers a hidden power among the elves that could change the wizarding world. For example, they might find a way to use elf magic in a new way that no one has thought of before.
One interesting plotline could be Harry learning elven magic. Since Elrond is an elf, he would have different knowledge of magic compared to what Harry is used to in the wizarding world. Another could be Harry's interactions with other elven characters. He might form unique friendships or rivalries. Also, his growth in a completely different cultural setting than Hogwarts would be fascinating.
One possible plotline could be Harry learning the unique culture and magic of the Delacour family. For example, he might be exposed to different types of French magic that he wouldn't have encountered otherwise. Another could be his relationships with the Delacour sisters. Maybe he forms a really close bond with Fleur, like a brother - sister relationship, which changes the way he views relationships in general. Also, his upbringing by the Delacours might give him a different perspective on the wizarding world politics, as the Delacours could have their own views and influence on him.
One possible plotline could be that Harry has unique magical abilities due to being raised by Death. Maybe he can communicate with the dead more easily and gain knowledge from them that gives him an edge in the wizarding world.
One interesting plotline could be how Dobby's unique house -elf magic and knowledge influence Harry's upbringing. For example, Dobby might teach Harry some secret elf - made spells. Another could be how Harry's relationship with the wizarding world changes since he is being raised outside of the traditional Hogwarts -centric environment. He might have a different perspective on things like pure - blood supremacy.
One interesting plotline could be how Harry's personality is shaped differently. With the Marauders' influence, he might be more mischievous and confident. For example, he could learn pranks from them at a very young age and use them to outwit his enemies later on.