Sirius could be the one to give Harry the talk. He could talk about family, both the good and the bad. Since Sirius had a difficult family situation, he could share his insights with Harry on how to break free from the negative influence of his family's past and create his own identity in the wizarding world.
McGonagall might also be the one. She could talk to Harry about the responsibilities that come with being a powerful wizard. She may use her own experiences as a Gryffindor and as a teacher to illustrate how to use magic for good and how to be a role model for other students.
Lupin could be a likely candidate. Given his experience and his role as a sort of mentor figure to Harry, he could give Harry the talk. It might involve Lupin sharing his own experiences with being a werewolf and how to deal with secrets and prejudices in the wizarding world.
It could be Dumbledore. He's always been like a mentor to Harry, so it would make sense for him to be the one to give an important talk, whether it's about Harry's destiny or how to handle the challenges in the wizarding world.
Axel could be the one to give Xion 'the talk'. He's been through a lot and has a good understanding of the world they live in. He could share his experiences with her, especially about loyalty and friendship, as he values his relationships with Roxas and Xion deeply.
Perhaps in this fanfiction, Dumbledore has 'the talk' with Harry. He might talk about the importance of love and friendship in the fight against Voldemort. He could also mention how Harry's choices shape not only his own destiny but also the future of the wizarding world. This could be a very deep and philosophical talk that helps Harry better understand his role in the grand scheme of things.
Rayleigh would be a great candidate. He's an experienced pirate and has already trained Luffy for a while. He has a lot of knowledge about the world of pirates and could give Luffy a talk about the deeper secrets of the Grand Line or how to deal with the powerful enemies that lie ahead.
This fanfiction could center around Harry getting a talk on some moral or ethical issues. Given the complex world of magic, there are many gray areas. So perhaps a character is having a deep conversation with Harry about the right and wrong use of magic, or how to handle the power he has been given. It could also be related to his identity as a wizard, and how to balance his Muggle - born and wizard heritage.
He might encounter magical ravens that can perform spells. These ravens could be guardians of certain magical places or objects. For example, there could be ravens protecting the entrance to a hidden chamber in Hogwarts.
Yes, in many fanfictions, Harry Potter can have special interactions with Hogwarts, like it being a sentient entity he can communicate with. It adds an interesting twist to the story.
Maybe Dumbledore, if he were still alive in the fanfiction. Dumbledore was highly respected and had a great influence. Knighting Harry would be a way for him to publicly recognize Harry's achievements and heroism on a grand scale.
Perhaps Harry Potter and the dinosaurs embark on a journey to find a lost magical artifact that has the power to restore balance in the wizarding world. The dinosaurs might know where the artifact is hidden because they have a connection to the ancient times when the artifact was last seen. Along the way, they face various challenges like dangerous terrains, other hostile magical creatures, and traps set by dark forces. Harry has to use his magic skills and his ability to talk to dinosaurs to overcome these obstacles.
It could signify a turning point in their relationship. They've had a rocky relationship in the original series, so this could be a moment of reconciliation. Snape might finally be seeing Harry as more than just James Potter's son.