What kind of fanfiction shows Dumbledore for what he is?

Well, he could find himself in an AU where the Hogwarts houses are based on different criteria. He might then have to help students adjust to this new system. He could also stumble upon a world where the Deathly Hallows have a different significance or are even unknown. This would lead him on a quest to understand their new meaning and how they relate to the balance of power in that universe.

Dumbledore might give Harry advanced spellcasting training. He could teach Harry some of the more complex and ancient spells that are not commonly taught at Hogwarts.

It depends on the specific fanfiction. Some might have Dumbledore showing Harry Merlin's Castle early on for plot development, while others might do it later as a major plot twist.

They probably have a very close relationship. Dumbledore would be like a father figure to Harry, guiding him through the wizarding world.

Dumbledore can teach Harry about the secrets of Hogwarts. There are likely hidden chambers and passages that Dumbledore, with his vast knowledge, can reveal to Harry. This knowledge could be useful for Harry in his adventures and in protecting the school.

Well, it might be a fanfic where a new dark wizard emerges with a unique power to manipulate memories, and they target Dumbledore's memories of Harry Potter. Or it could be a story where Dumbledore gets caught in a complex web of magical experiments gone awry, leading to this memory loss.

Maybe it's a conflict or mystery related to Dumbledore's actions that causes chaos in the fanfic. It might have something to do with his past or a hidden agenda.

There are various types. Some might have her facing justice in a magical court, while others could involve her being defeated in a powerful magical battle.

He might be quite amused. Dumbledore has a great sense of humor and an open mind. He would probably find the creative interpretations of his world and the characters he knows so well to be an interesting study of how others perceive Hogwarts and its inhabitants.

In a fanfiction, Dumbledore might steal out of desperation. Suppose there was a situation where a curse was about to be unleashed on Hogwarts, and the only way to stop it was by stealing a particular ingredient for an antidote from a place where it was not supposed to be taken. Dumbledore, seeing no other option, decides to steal it. His motive here is to save the school and its students, even if it means breaking the rules.