I'd recommend 'Power Unleashed' where Harry's latent magic is unlocked, making him extremely powerful and changing the course of the wizarding world. It has a complex plot and great character development.
One of the great ones is 'The Wizard's Ascent' where Harry discovers hidden powers and uses them to overcome major magical threats.
You should check out 'The Might of Harry Potter'. In this fanfic, Harry gains immense power through a mysterious encounter and uses it to protect his friends and face new challenges. The story is full of action and surprises.
In fanfiction, Harry Potter might be made a more powerful wizard through various means. For example, he could have access to new spells or magical artifacts that enhance his powers. Maybe he has a different kind of magical training that unlocks hidden potential within him.
Powerful magic skills are a key factor. This includes being able to cast complex spells accurately and quickly. For example, the Patronus charm is a difficult spell, and a wizard who can easily cast a powerful Patronus is usually seen as strong. Also, knowledge of different branches of magic like Transfiguration, Charms, and Potions plays a big role.
One of the most powerful Harry Potter fanfictions is 'Harry Potter and the Methods of Rationality'. It reimagines the wizarding world through a scientific and rational lens, making Harry a highly intelligent and logical character. His actions and decisions are based on careful analysis, which is a very different take on the original story.
In Harry Potter fanfiction, a wizard can be made more powerful through various means. One way is by having a deeper understanding of magic. For example, a wizard might study ancient and forgotten spells that give them an edge. Another factor could be unique magical inheritances. A character might come from a long - lost wizarding bloodline with special powers, like the ability to control the elements. Also, in fanfiction, some wizards gain power through intense training or experiences. They might endure a series of difficult trials that unlock hidden magical potential within them.
You can start by looking on fanfiction websites like Archive of Our Own (AO3). It has a vast collection of fanfictions, and you can use the search function to specifically look for 'Harry Potter First Wizard' stories. Another good place is FanFiction.net. There are a lot of dedicated Harry Potter fans on there who write all kinds of fanfictions, including ones related to the first wizards. You could also try Wattpad, although it has a more general mix of stories, but still might have some interesting 'Harry Potter First Wizard' fanfictions.
In many fanfictions, Harry Potter is made into a powerful wizard by being given new and unique magical abilities. For example, he might have the power of telepathy with all magical creatures. This allows him to communicate and gain their assistance, which makes him seem very powerful. He could also be shown as having a much deeper understanding of ancient magic than in the original series, enabling him to perform feats that are considered impossible in the normal wizarding world.
There are quite a few. 'The Old Wizard's Enigma' is a fanfiction that centers around an old wizard who has a mysterious past and holds the key to a great magical mystery. It keeps readers on their toes as they try to figure out the enigma along with the characters. Then there's 'The Chronicles of Old Wizards at Hogwarts' which could be about the history of old wizards who attended Hogwarts long ago and the influence they had on the school's development. 'The Old Wizard's Apprentice' is another one, where a young wizard becomes the apprentice of an old and powerful wizard, learning ancient magic and getting involved in all sorts of magical adventures.
One great 'Harry Potter First Wizard' fanfiction could be one that explores the early days of Hogwarts. It might focus on the very first students and how they discovered magic, long before Harry Potter's time. Maybe it shows how the founders of Hogwarts, like Godric Gryffindor, developed the concept of houses and the sorting system. Another could be a story about the first wizard to encounter a certain magical creature and how they learned to coexist with it. There are also fanfictions that might delve into the origin of spells used in the wizarding world, and how the first wizards came up with them.
One interesting 'Harry Potter Hit Wizard' fanfiction could be one where a Hit Wizard has to solve a mystery within Hogwarts that the regular professors can't handle. For example, a series of strange disappearances that seem to be linked to a dark magic artifact hidden in the school for centuries.
There are many great ones. 'The Unseen World' is a fanfiction where Harry discovers his wizarding heritage in a very mysterious way. He starts seeing strange apparitions that lead him to a hidden wizarding library where he finds out the truth about himself. Another good one is 'A Different Beginning' which focuses on how Harry's discovery affects his relationships with his schoolmates even before he goes to Hogwarts.