In fanfiction, Naruto's shadow clone jutsu could be combined with Goku's Instant Transmission. For example, Naruto creates multiple clones and they all use Instant Transmission simultaneously to surround an enemy. This would be a very effective strategy.
A really cool combination in fanfiction could be Goku using his ki to enhance Naruto's rasengan. The pure energy of the ki could make the rasengan larger, more powerful, and perhaps even give it different properties. They could also develop new team - up moves, like a combined energy blast where Naruto channels his chakra into Goku's ki and they fire it at an enemy.
Yang's semblance of getting stronger with every hit could be linked to Goku's Saiyan ability to get stronger after near - death experiences. They could have a training session where they push each other to their limits. Yang could learn from Goku how to better control her power growth and Goku could learn about the unique nature of Yang's semblance.
Naruto's Rasengan could be encased in Elsa's ice to create a more powerful and destructive attack. The ice would make the Rasengan even more solid and increase its impact.
Well, Naruto's chakra control and his ability to use shadow clones could be combined with Medea's magic. For instance, Medea could use her magic to enhance the power of Naruto's shadow clones, making them stronger or giving them special abilities.
Naruto's Rasengan could be combined with Wanda's energy manipulation. She could enhance the power of the Rasengan with her red energy, making it even more destructive.
In a fanfiction, they could also combine their powers for a defense mechanism. Naruto could create a chakra shield while Kuroyukihime projects a virtual layer of protection around it. This double - layered defense would be extremely difficult for enemies to penetrate. Also, Naruto's shadow clone jutsu could be used in the virtual world with Kuroyukihime's guidance to confuse opponents and carry out complex strategies.
Well, in fanfiction, Naruto's chakra - based powers like the Rasengan could be combined with Superman's super strength. For example, Naruto could use his chakra control to enhance Superman's punches, making them even more powerful. Or Superman's heat vision could be mixed with Naruto's fire - style jutsu to create a more intense and unique attack.
Well, Naruto has his chakra and various jutsu like the Rasengan. Inner Moka has her vampire strength and speed. In a fanfiction, they could combine their powers by Inner Moka using her speed to quickly get Naruto into position to launch a powerful Rasengan. Or Naruto could use his chakra to enhance Inner Moka's physical attacks.
One way could be that Naruto, through some sort of ritual or encounter, gains the ability to summon parts of Trihexa's power. He could then incorporate these powers into his fighting style. He might use Trihexa's power of destruction in a more controlled way, like when he's facing really tough opponents. He could also use Trihexa's unique energy signature to disrupt enemy jutsus or defenses, since it's likely to be something very different from what most characters in the Naruto world are used to.
Goku's powers are on a much higher scale. His ability to destroy planets as a Super Saiyan makes him far more powerful than Naruto at his strongest. Naruto's jutsu are mainly focused on the ninja world, while Goku's powers are universal.
The Sharingan from Sasuke could be used to analyze the weaknesses of Shadows more effectively. Then, a Persona with the right elemental or skill type could be summoned to exploit those weaknesses. It's like combining Sasuke's detective - like ability with the offensive power of a Persona.