In fanfiction, Harry Potter characters in heaven might be at peace. Harry could be reunited with his parents, Sirius, and Dumbledore. They might spend their time sharing stories of their great battles and the love that prevailed. Hermione would probably be in the library of heaven, still seeking knowledge, and Ron would be by her side, munching on celestial treats.
In fanfiction, the relationships could be more harmonious. For instance, Draco and Harry might become friends, letting go of their past enmity. The Slytherins and Gryffindors could put aside their house rivalries. Hermione and Luna would likely bond over their love for the esoteric and the magical. And the older generations like the founders of Hogwarts might be like mentors to the younger characters.
It's hard to say for sure without reading it, but it could be Harry Potter himself. Since it's related to the Harry Potter world, he might be the main character exploring the Library of Heaven's Path.
It could be a fan - made fictional world within the Harry Potter universe that's like a 'heaven' in some sense. Maybe it's a place where the characters go after they die in the fanfiction's version of the story, or it could be a really idyllic place within the magical world that has some heavenly qualities, like extreme beauty and peace.
There could be. 'Harry Potter' fanfiction is a vast genre with all kinds of crossovers. While 'Kingdom of Heaven' isn't as commonly associated with 'Harry Potter' as, say, other wizarding worlds in fanfic, there are always creative writers out there who might explore the connection. You could start by looking at larger fanfiction archives and seeing if any tags or summaries mention both.
He could meet his parents, James and Lily Potter. They were important figures in his life even though he never really got to know them. Their presence would surely be comforting and they might offer him some words of wisdom.
One possibility is that there could be some comical moments. Picture Ron and Hermione in this situation. Ron might be all flustered and say something really silly at first, but then they could start discussing their feelings for each other more openly than they ever have before. It could also be a chance for characters to show different sides of themselves that we haven't seen in the books or movies.
Harry and Ginny are a likely pairing. Given their relationship in the original series, this scenario could be used to explore their relationship further. They might use the seven minutes to talk about their future together or just enjoy a few private moments.
Well, perhaps Harry could have 60 minutes to meet and talk with his lost loved ones in a magical heaven - like place. Maybe he'd see his parents and Sirius, and they'd give him some important advice for the upcoming battles against Voldemort.
I'm not sure of specific titles off - hand. But you can try looking on fanfiction websites like Archive of Our Own. Just search for 'harry potter heaven' and you should find some interesting ones.