To be honest, I don't think there are many. Super Sentai is more popular in TV shows and merchandise. But you might find some indie or fan-made visual novels if you search hard enough.
There are quite a few interesting Naruto and Super Sentai fanfictions out there. One great one is 'The Ninja Sentai' which combines the ninja elements from Naruto with the team - work and cool mecha of Super Sentai. It has an engaging plot where the Naruto characters find themselves in a world similar to that of Super Sentai and have to adapt and fight together.
One popular theme is the power - up theme. Writers often give Naruto characters Super Sentai - like powers or vice versa. For example, Naruto getting a Super Sentai - style transformation. Another theme is the battle against a common evil. It's interesting to see how the ninjas and the Sentai heroes work together to defeat a powerful foe.
One common theme is power - how an OC's power interacts with Rio's. For example, in some fanfics, the OC has a power that complements Rio's fighting style.
Some crossovers focus on the relationships between the characters. For instance, a Kamen Rider might form a friendship with a member of a Super Sentai team. They could then go on adventures together, sharing their different perspectives on being heroes. In some fanfictions, there are also romances that develop between characters from the two franchises, which adds an interesting dynamic to the story.
A cool plot could involve a villain who has the ability to steal the memories of the heroes. The Power Rangers and Super Sentai teams then have to work together to regain their memories while also fighting off the villain's minions. They could start with just basic combat skills and gradually remember their more powerful abilities as the story progresses.
Some of the robotic or non - human characters are also well - liked. Alpha 5 from Power Rangers could be really interesting when paired with a similar type of character from the Super Sentai series. They could have a tech - based sub - plot where they try to upgrade their respective teams' weapons or communication devices. It adds a different dynamic to the story compared to just the human heroes interacting.
One popular 'Super Sentai Gekiranger Rio' OC fanfic is 'Rio's New Adventure'. It explores Rio in a new storyline where he teams up with an OC. Another one could be 'The Secret of Rio', which delves deeper into his past and relationships with the help of original characters.
In some cases, the fanfictions might pit the power systems against each other in a sort of competition. This could be used to show the strengths and weaknesses of each system. For example, the Super Sentai's teamwork - based powers might be compared to the more individual - focused powers of the Kamen Rider. However, in the end, it often leads to a mutual respect between the two groups as they realize the value of each other's power systems.
😋I recommend two novels to you,"Douluo's First Sign in to Send the Goddess" and "Douluo: Tang Sect's Eldest Miss, She Explodes the Whole Scene". The former told the story of a male protagonist crossing Douluo Continent to obtain the goddess mission reward system, and after completing the mission he received all kinds of rare rewards and goddesses with different personalities, while the latter was the story of a powerful female protagonist reincarnating on Douluo Continent, possessing a special spirit and Hidden Weapon Hundred Dispelling, and taking in Tang San as her little brother. I hope you like this fairy's recommendation. Muah ~😗