Well, without reading the actual fanfic, it could be about Harry Potter having hidden intellectual abilities that others around him, like his friends or teachers, don't fully recognize. Maybe he solves complex magical problems in ways that surprise everyone.
Since it's a fanfic related to Harry Potter, Harry himself is most likely a main character. There might also be his friends like Ron and Hermione, as they are often involved in his storylines in the original series and could be part of the story to contrast or support Harry's under - recognized intelligence.
Ron could also be in it. He might initially not believe that Harry is hiding his intelligence, but as the story progresses, he could start to notice little things that Harry does which show his real intelligence. Ron's loyalty to Harry would then play a role in how he reacts to this discovery, either helping Harry keep it a secret or getting frustrated with Harry for not sharing his intelligence more freely.
In the Naruto series, Shikamaru is often seen as a highly intelligent character. However, in a fanfic where Naruto is considered smarter, it could be interesting. Maybe Naruto's quick thinking in battles, his ability to come up with unique strategies on the fly, is emphasized more. For example, in the original series, Naruto has his own way of solving problems that doesn't always follow the traditional 'smart' way like Shikamaru. But in this fanfic, his intelligence might be shown in more academic or strategic areas that were previously dominated by Shikamaru's perception of intelligence.
Well, one interesting plot point could be how Harry uses his hidden intelligence to outwit his enemies. For example, he might come up with clever strategies during duels.
Perhaps in the fanfic, Harry is smart in ways that are not recognized by the wizarding world's traditional measures. He might have an in - depth understanding of magic that goes beyond what he shows in school. Maybe he's secretly researching ancient spells and magic theories that could be used to solve bigger problems in the wizarding community, but he doesn't want to draw attention to himself until he's fully prepared.
In certain fanfictions, Harry Potter can indeed be made to seem smarter than Hermione. This could be because the author decides to explore different aspects of intelligence. Harry has a lot of life experiences that could be translated into a different form of wisdom. He has faced Voldemort directly many times and survived. This could lead to a kind of street - smart or battle - smart intelligence that Hermione, with her focus on books and rules, may not possess in the context of that fanfiction.
Yes, there are likely some fanfictions out there with this concept. You can start by looking on popular fanfiction websites like FanFiction.net or Archive of Our Own. Just search for the key phrase 'harry is smarter than hermione' in their search bars.
Maybe Harry discovers a new form of magic that Hermione has overlooked, and he uses it to solve a major problem in the wizarding world. This makes him seem smarter in that aspect.