One way Harry could act like James in fanfic is in his Quidditch skills. James was an excellent Quidditch player, and Harry might show even more of that natural talent and leadership on the Quidditch pitch. He could be more flamboyant in his flying, making daring moves. Moreover, Harry could inherit James's charisma, being able to charm those around him more easily, whether it's his classmates or teachers, which would lead to some interesting new relationships and plot developments in the fanfic.
Well, Harry might show James - like bravado. For example, in dangerous situations, just as James was fearless in facing dark wizards, Harry could also charge forward without hesitation. Another behavior could be his sense of loyalty. James was extremely loyal to his friends, and Harry might display a similar unwavering loyalty to his comrades at Hogwarts.
One example could be in a fanfic where Harry inherits Lily's calm and gentle nature in handling difficult situations. For instance, when dealing with a conflict among his friends, he might use the same diplomatic approach Lily would have used.
Maybe he tries to use a jutsu in a completely wrong way. Like he might try to perform the Rasengan but ends up spinning around himself like a top instead. Another example could be that he misinterprets a simple mission instruction and goes off in the wrong direction, thinking he's doing the right thing.
Well, it could be that in this fanfic, Harry might show the ambition that Slytherins are known for. Maybe he starts to be more cunning in his actions, similar to how Slytherins are often portrayed.
It can make Harry seem more like his father in terms of his general demeanor. Instead of just being the Boy Who Lived, he now has an added layer of his father's traits. So people might see him as a bit more of a troublemaker in a fun way, like James was.
In fanfiction, Luffy often shows his leadership by making quick decisions in battle. For example, he might decide on a sudden change of strategy that surprises the enemy and gives his crew an advantage. He also stands up for his crew members no matter what, which is a key aspect of being a good captain.
Well, Naruto in fanfiction often acts like a ninja in terms of his stealth. He might be able to blend into the shadows of the forest so well that even the most experienced ninja have trouble detecting him. And when it comes to intelligence gathering, he could use his charm and friendly nature to get information from villagers or even other ninja without them realizing they are being pumped for intel. Another way is his combat adaptability. He can quickly analyze his opponent's fighting style in a fanfiction battle and come up with a unique strategy on the fly, which is a very ninja - like trait.
There's also 'Harry and James: Parallel Lives'. This fanfic takes an interesting approach where it shows how Harry's life could have been similar to James' in some aspects. It has great character development and a really engaging plot that keeps you hooked from start to finish.
There are many great James and Harry fanfic stories. For example, some might focus on their relationship as mentor - mentee in a magical training context. In these stories, James could pass on his knowledge of advanced spells and magical techniques to Harry. Another type could be about them teaming up to solve a mystery within Hogwarts that has been puzzling the students and faculty for a long time.
One possible plot could be Harry starting to share Luna's unique views on magical creatures. For example, he might start believing in the existence of some of the more obscure creatures Luna is fond of, like the Crumple - Horned Snorkack. This could lead to him going on adventures to find evidence of these creatures, much like Luna would do.