Often, there's the plot of the oc having some sort of mystery or secret that Nile gradually uncovers. This could be related to their beyblade or their past. Also, many beyblade nile x oc fanfictions involve the two characters facing a powerful common enemy and having to rely on each other's strengths to overcome it. It might be a new, super - strong blader or a group trying to disrupt the beyblade competitions.
A common plot element is the oc being a new challenger in the beyblade world and Nile taking them under his wing. For instance, the oc might be from a different region and Nile helps them understand the local beyblade culture. Another one is the two of them forming a team to compete in tournaments.
In beyblade nile x oc fanfiction, a prevalent plot element is the development of their relationship. At first, they might be at odds, like the oc is too headstrong and Nile is a bit skeptical of their abilities. But as they spend more time together, they start to respect and trust each other. There are also stories where the oc has a unique beyblade design that catches Nile's attention. They then work together to improve the beyblade's performance, and through this process, their bond deepens. Another aspect is the exploration of Nile's character from a different perspective through his interactions with the oc. For example, we might see a more patient or understanding side of Nile that we didn't see in the original series when he is dealing with the oc.
Well, I'm not sure about specific titles off the top of my head. But you can start by looking on fanfiction.net or Archive of Our Own. Just search for 'beyblade nile x oc' and you'll likely find a bunch. Some might be about Nile and the oc going on adventures together, while others could be centered around their personal growth as they interact with each other.
The plot could start with Nile noticing a new girl in the Beyblade community. He's immediately drawn to her confidence. They get paired up for a team battle, and during that, they realize how well they can work together. This initial teamwork sparks an interest in each other. Later, they go on adventures in the Beyblade world, exploring new arenas and techniques, all while their relationship deepens.
A possible plot twist could be that the OC is actually related to one of Ryuga's old enemies. This revelation would create a huge conflict in their relationship. Ryuga would have to decide whether to trust the OC or not. Another twist could be that the OC has a hidden power that is somehow connected to the dark power Ryuga has, but in a way that could either destroy or save him.
A common plot element is the initial encounter. It could be a chance meeting in a busy street in Ikebukuro. Another is the OC being in some sort of danger and Shizuo coming to the rescue. For example, the OC might be targeted by a gang and Shizuo uses his strength to protect them.
The time they can spend together could also be a problem. With Nile's busy schedule of training and competing, and the reader having their own life, it might be difficult to find enough time to nurture their relationship.
The OC could be a healer in the blading world. Ryuga gets seriously injured during a battle. The OC takes care of him and during his recovery, they start to bond. Ryuga, who is usually so tough and independent, finds himself relying on the OC. This newfound closeness makes him question his own feelings. They could then go on a journey together to find a rare blading item, with their relationship evolving along the way.
A common plot element is the OC being new to the school or the Host Club environment. This allows for a lot of discovery and interaction with Kyoya. Another is the OC having some sort of problem or secret that Kyoya either helps with or discovers. For example, financial problems or a family secret.
One common plot element is the oc having a special ability or knowledge that intrigues Robin. For example, the oc might be an expert in ancient languages, which catches Robin's attention as she has her own interest in history and archaeology.
One common theme is friendship development that might turn into something more. They could start as acquaintances or rivals and gradually grow closer.
Well, it could begin in the heat of a beyblade battle. Maybe the reader is a new challenger and Nile is instantly intrigued by their skills and determination. He can't help but be drawn to them, and from there, the first sparks of love might fly.