There's a possibility that he meets a group of magical creatures that are extinct in his own universe. These creatures could have their own unique magic and culture, and Harry could learn from them and even help them in some way in this alternate universe.
Perhaps he meets a version of his parents who are still alive. This would be an incredibly emotional encounter for Harry. He would get to know them, and they could teach him things about magic and life that he never had the chance to learn before.
He might meet different versions of his friends. For example, a Hermione who is a powerful sorceress ruling a magical kingdom. It would be exciting as he could learn new magic from her and be part of her adventures in this alternate reality.
Well, Hermione is often depicted in different ways in these fanfics. In some alternate universes, she could be a powerful dark witch instead of the studious and good - hearted character we know. Ron might be a super - confident and arrogant character rather than the sometimes insecure boy in the original story. Also, Snape could be a completely different person. He could be a jolly and friendly teacher rather than the brooding and complex one we are used to.
One great 'alternate universe Harry Potter fanfiction' is 'The Life and Times of Severus Snape'. It delves deep into Snape's character in an alternate setting. It shows a different side of Hogwarts and the wizarding world through his eyes. Another one is 'A Different Sort of Magic' which changes the magic system in an interesting way. The characters have to adapt to new rules of magic, creating a fresh and engaging story.
In some 'Harry Potter travels to alternate universe fanfic' plotlines, Harry might find that his parents are alive in the alternate universe. This would be a huge emotional rollercoaster for him. He would have to deal with the fact that he has a different family dynamic, and also figure out how this affects the fight against evil. Additionally, the alternate Hogwarts could have different teachers or even different subjects. This would open up a whole new world of exploration for Harry.
One great 'Harry Draco alternate universe fanfiction' is 'All Our Secrets Laid Bare'. It explores a world where they are on opposite sides of a political struggle in Hogwarts. Another is 'Away Childish Things' which gives a really different take on their relationship, with them being forced to work together in a Muggle - wizard cooperation project.
One unique feature is the ability to re - imagine their relationship. For example, in some fics, they might meet as children before Hogwarts. Another is the change in their character traits. Maybe Ginny is more shy or Harry is more outgoing. Also, the settings can be different. They could be in a world where magic is almost extinct or where there are new magical creatures.
There are quite a few good 'Harry Potter Alternate Universe Travel Fanfiction' out there. For example, 'The Lost in Alternate Potter Worlds' story is about a group of students who get lost in different alternate versions of the wizarding world. They have to find their way back while facing all sorts of strange challenges and new magical creatures. Another one is 'When Harry Traveled to the Alternate Hogwarts'. In this one, Harry, on his own, travels to an alternate Hogwarts where things are very different. The relationships between the characters are changed, and there are new secrets to uncover. 'The Other - Side Potter Universe' is also a fascinating fanfiction. It shows an alternate universe where the war between good and evil took a completely different turn, and the characters have to deal with the consequences of that different history.
I really like 'Time - Twisted Love' in the 'Harry and Ginny alternate universe fanfiction' genre. It plays with time travel and shows Harry and Ginny meeting at different points in time in a really convoluted but fascinating way. 'The Magic Within' is another one where Ginny discovers a new type of magic that only she can use, and it changes the dynamic between her and Harry. Also, 'Hidden Worlds' is a great read. It's about Harry and Ginny finding a secret world within Hogwarts that no one else knows about and how that impacts their relationship.
Well, 'The Veil's Echo' is a top - notch alternate universe fanfiction. In this story, the Veil in the Department of Mysteries has some unforeseen consequences that send Harry and his friends into a parallel wizarding world. It's full of mystery and adventure. 'A World Without Voldemort' is another great one. As the title suggests, Voldemort was never born, and the wizarding world has developed in a completely different direction. There are new political struggles and different character dynamics. Also, 'The Animagus Potter' is cool. Harry discovers he has an animagus form much earlier and it changes how he interacts with others at Hogwarts.
He could meet alternate versions of his friends. For instance, an alternate Sasuke who has never left the village and is a strong ally from the start. This Sasuke could be more open and friendly, and together they could face the challenges of the new universe.