In a fanfiction regarding Shino's eyes, his eyes might be the key to an ancient shinobi technique. For example, his eyes could unlock a hidden jutsu that was lost for centuries. This jutsu could be related to insect control in a more profound way, like being able to communicate with all insects on a spiritual level, not just the ones he summons. This would give him a huge advantage in both intelligence - gathering and combat.
A fanfiction idea could be that Shino's eyes change color based on his emotions. When he's angry, they turn a deep red, and when he's calm, they are a soft brown. This physical manifestation of his emotions could cause some misunderstandings among his comrades at first. But as the story progresses, they learn to read his emotions through his eyes and it becomes a way for him to better connect with his friends in Team 8.
A good plot could be that Shino's eyes are the target of an evil organization. They believe that his eyes hold the secret to controlling all insects in the world, not just the ones he has a bond with. So, they start to hunt him down. Shino has to rely on his friends and his own skills to protect himself and his secret. Along the way, he discovers more about the origin of his unique eyes.
In fanfiction, Naruto and Shino's friendship can be really interesting. Naruto's exuberant personality contrasts with Shino's more reserved nature. For example, Naruto might be the one to drag Shino into all sorts of adventures, while Shino would use his intelligence and bug - related skills to get them out of trouble. Their friendship could also develop over training sessions, with Naruto learning about Shino's unique abilities and respecting him more for it.
One possible fanfiction could be about Shino and Kiba going on a mission together. They might face a powerful enemy that requires them to combine their unique skills. Shino's bugs could provide reconnaissance while Kiba's sense of smell and Akamaru's strength could be used for combat.
In many Naruto fanfictions focused on this team's romance, one common theme could be the slow - burning relationship between characters. For example, Shikamaru might be initially oblivious to the feelings of a female teammate. Shino, on the other hand, could be the more observant one, secretly helping to nudge the relationships forward. The team's dynamics would add an interesting layer to the romance, as they are all so different in personality. Their ninja training and missions could also play a part in the development of these romantic relationships, with shared experiences bringing them closer together.
There could be a fanfiction where Naruto gets a vision through Madara's eyes. He sees the past events that led Madara to become the powerful and feared ninja he was. This vision makes Naruto understand Madara on a deeper level. He then tries to find a way to prevent the same kind of tragedies that happened in Madara's life from happening again in the present ninja world. Naruto could use this new - found understanding to bring about peace in a different way than he originally thought.
Well, in some fanfiction, their friendship is shown as a slow - burning one. Naruto doesn't quite understand Shino at first because of his bug - like appearance and quiet ways. But as they work together on missions, Naruto begins to see Shino's loyalty and strength. Shino, on the other hand, admires Naruto's determination.
One great fanfiction idea could be a story where they go on a mission together. Naruto's optimism, Kiba's brashness, Sasuke's cool determination and Shino's quiet intelligence combine in interesting ways. They face a powerful enemy and have to rely on their bond to overcome difficulties. Maybe they start off not getting along well, but as the mission progresses, they learn to understand and trust each other more.
They could start by sharing common goals. For example, they both want to protect Konoha. Working towards this goal side by side can bring them closer. They might have conversations during their guard duties about their dreams and fears.
If adopted by Shino in fanfiction, Naruto's character could change in several ways. For one, he'd likely become more attuned to nature, since Shino has a strong connection to the bugs in nature. Also, his fighting style might become more strategic and less brute - force - oriented. Shino could teach him to use his surroundings and opponents' weaknesses better. And Naruto's sense of family might shift. Instead of always longing for the acceptance of the village as a whole, he'd have a more personal family unit with Shino, which could make him more content and less desperate for validation from others.
Yes, there are some. You can start by looking on fanfiction websites like FanFiction.net or Archive of Our Own. Just search for 'naruto is shino's mate' in their search bars and you'll likely find a variety of stories with different takes on this pairing.