Perhaps a fanfiction where Conner is from a different dimension and Nico has to help him adapt to his world. This would involve a lot of cultural clashes and misunderstandings at first, but through their shared experiences, they form a strong bond.
You can try websites like Archive of Our Own (AO3). It has a large collection of fanfictions from various fandoms, and you might be able to find some great Conner x Nico fanfiction there.
In some baby Conner Kent fanfiction, there might be a story where he is befriended by other super - powered kids in the neighborhood. They form a little league of their own, where Conner has to learn to control his powers while also dealing with the typical toddler issues like sharing toys and taking naps. This shows his growth not just in powers but also in social skills.
One great conner kent x oc fanfiction could be 'Conner's New Ally'. In this story, the OC might be a new meta - human in town with unique powers. Their relationship starts with a misunderstanding but gradually turns into a strong bond as they fight against common enemies together. It has a lot of action scenes and character - development for both Conner and the OC.
One good Nico x Will fanfiction could be 'A New Beginning' where they start as reluctant partners in a quest and gradually develop feelings. It's really sweet and shows their different personalities coming together.
One idea could be to have Conner and Bree go on a secret mission within the Land of Stories. Maybe they discover a hidden realm that was lost long ago and has to figure out how to return it to the main land.
One popular type of story might be about their adventures together at school. For example, they could be preparing for a big school concert where they face various challenges and in the end, their friendship grows stronger. Another could be a story where they accidentally switch bodies and have to figure out how to get back while also understanding each other better in the process.
There's a fanfic called 'Trials of Three'. In this story, Percy, Nico, and Annabeth are sent on a quest that was thought to be impossible. The author does a wonderful job of exploring their relationships. Percy's leadership, Nico's mysterious powers, and Annabeth's intelligence all play crucial roles in the story's development.
One interesting fanfiction could be about their adventures in a new, mysterious realm. They might face challenges that test their friendship and powers. For example, they could be trapped in a realm where time moves differently and they have to work together to find a way out.
One interesting story could be about Hades teaching Baby Nico about the Underworld in a gentle way. For example, showing him the different regions like Elysium and the Fields of Punishment in a way that a baby could understand, like through simple pictures made of shadows.
There might be a nico time travel fanfiction where Nico accidentally travels to the future and has to deal with a completely different world. He could struggle to adapt and find a way back to his own time while also learning about the possible future of his friends and the world he knows.