A mentor - mentee relationship could develop. The Winchesters, with their years of experience in fighting all kinds of supernatural beings, could mentor Harry. They could give him tips on combat strategies, survival skills, etc. Harry, on the other hand, could learn a great deal from them and maybe even apply some of those skills in his own world.
They might develop a friendship. Harry could see Daphne's kindness beneath her Slytherin exterior at the Yule Ball, and Daphne could realize that Harry is not just the 'Chosen One' but also a normal boy with normal feelings. This new understanding could lead to a friendship where they support each other through the challenges at Hogwarts.
After the war, they might travel around the wizarding world. They visit different magical communities and learn about new spells and cultures. Along the way, they rely on each other for support and protection. Harry, with his fame, sometimes faces challenges from those who still idolize or fear him, and Ginny is always there to stand by his side. Their adventures together make their relationship more solid and full of love.
In a fanfiction, their relationship might start off rocky. Deadpool's crazy antics would likely put Peter off at first. But as they face challenges together, they could grow to respect each other. Deadpool might learn some sense of responsibility from Peter, and Peter could loosen up a bit thanks to Deadpool's carefree attitude. Eventually, they could become a great superhero duo, with Deadpool providing the comedic relief and Peter the moral compass.
Their relationship might start with them being comrades in arms. After the war, they would have more time to really talk and understand each other on a deeper level. This would lead to romantic feelings.
At first, it's likely to be tense. Harry has years of seeing Snape as a bully. But as they start living together, they begin to understand each other. Snape might show his more vulnerable side to Harry, like his memories of Harry's mother. Harry, in turn, starts to respect Snape's knowledge and sacrifice. Eventually, they develop a bond like a father - son relationship.
Well, at first, Harry might feel a bit out of place, but the Weasleys' warm welcome would soon make him feel at home. He would start to participate in their family discussions, offer his own opinions, and be a part of their decision - making processes. The Weasleys would teach Harry things that he missed out on growing up without a proper family, like how to handle family disputes in a healthy way. Harry, on the other hand, would bring his own unique perspective to the family. His fame and the things he had been through would make the Weasleys see the world in a different way. This exchange of ideas and experiences would continuously deepen their relationship over time.
Their relationship might develop more deeply. They have both been through a lot during the war, and this shared experience could bring them closer. They would start to understand each other on a whole new level. For example, Harry might see Ginny's strength in a different way, and Ginny would see Harry's vulnerability more clearly. This new understanding would strengthen their bond.
They might develop a mentor - mentee relationship. If Craig is more experienced in the ways of the world outside the barbarian tribes, he could mentor Tweek on how to navigate different cultures and situations. Tweek, on the other hand, could be Craig's mentee in terms of physical strength and combat skills, which could come in handy for Craig when he gets into trouble.
They could develop a mentorship - like relationship. Lois, with her knowledge of the superhero world and her experience in dealing with complex personalities, could guide Conner. He, in turn, could offer her a fresh perspective on the world of superpowers.
They could develop a mentor - mentee relationship. The future Tsuna has more experience and knowledge, so he can guide the present Tsuna.