Well, Naruto and Gamakichi fanfiction can be really exciting. It often takes the unique bond between Naruto and Gamakichi, his toad friend, to new levels. Some fanfictions might explore their adventures together in more depth, like how they team up to face new and powerful enemies in the Hidden Leaf Village. Others could focus on their more humorous interactions, like when Gamakichi teases Naruto about his eating habits.
In some fanfictions, Naruto and Gamakichi could go on a secret mission. This mission might be related to the toad clan's secrets or something that could have a big impact on the Hidden Leaf Village. They would have to rely on each other's strengths - Naruto's ninja skills and Gamakichi's toad - like abilities - to succeed. And along the way, they would have all kinds of exciting encounters and challenges.
A great Naruto Gamakichi fanfiction could involve Gamakichi and Naruto going on an adventure to a mysterious land. Along the way, they face various challenges and Gamakichi's loyalty and friendship are put to the test. His froggy wisdom helps Naruto make important decisions as they explore this new and dangerous place.
In this fanfic, 'gamakichi is naruto's familiar' might imply that Gamakichi is like a sidekick or a special companion to Naruto. It could explore how they met and formed this relationship. For example, it could start with Naruto visiting the toad mountain and having a unique encounter with Gamakichi. And then, their bond could develop as Naruto trains and faces different challenges, with Gamakichi always there by his side, lending a helping hand in different forms, like using his strength to carry Naruto during difficult terrains or using his intelligence to figure out puzzles or enemy strategies.
Check out the reviews and ratings of the fanfictions. If a story has a high rating and positive reviews, it's more likely to be a good read. Also, look for authors who are known for writing good Naruto fanfictions and see if they have any Gamakichi - related works.
I don't have a list of exact similar fanfics at hand. However, you could also check Naruto - focused fanfic communities on Reddit or other forums. There, fans might be able to recommend some fanfics that have a similar concept of Gamakichi being Naruto's familiar. They might even be able to give you some insights on the best ones to read based on their own reading experiences.
The reason you're not a wise man in the comic might be that the author wanted to create a contrast or a growth arc for your character. Maybe wisdom will come later in the story or it's not a trait that's needed for the current plot.