Piccolo might also be a savior. He has a soft spot for Gohan since they trained together. He could use his strategic mind and powerful attacks to outwit Raditz and rescue Gohan. Maybe he teams up with Goku for an even more epic rescue mission.
In a 'Gohan kidnapped by Raditz' fanfiction, the plot could involve Raditz trying to turn Gohan against his family. He could expose Gohan to the cruel ways of the Saiyan race that Goku has somewhat distanced himself from. Raditz might show Gohan visions of the Saiyan's former glory and try to convince him that his human family is holding him back from achieving true power.
Goku would be a mix of angry and worried. His Saiyan blood would make him want to rush into battle with Raditz right away. But he also knows how dangerous Raditz is, so he might first try to gather some allies, like Piccolo. He'd be constantly thinking about Gohan and how to rescue him as quickly as possible.
One plot idea could be that Gohan's friends, like Krillin and Bulma, team up to rescue him. They might use some of Bulma's inventions to track Raditz. Another idea is that Gohan manages to outwit Raditz during the kidnapping. Maybe he uses his hidden power to escape Raditz's clutches briefly and leaves a trail for his father Goku to follow.
One interesting scenario could be a battle in a neutral dimension where Gohan's Saiyan powers and Naruto's ninja techniques are put to the test. Gohan's super strength and ability to go Super Saiyan might be pitted against Naruto's shadow clone jutsu and Rasengan.
It's really hard to say. If we consider Gohan at his most powerful, like when he's a Super Saiyan 2, his raw power is off the charts. He could potentially one - shot Naruto with a powerful energy blast. But Naruto has his nine - tailed fox form which gives him a huge boost in power and speed. So it depends on the situation and how the author writes it.
In Gohan vs Naruto fanfics, a really cool plot is when their powers get combined somehow. For example, due to a magical or scientific accident, Gohan's ki and Naruto's chakra merge, creating a new and powerful force. Another interesting plot is when they have to fight in a world that has rules that are different from both of their own. This forces them to adapt in unique ways. Also, a plot where they are both de - powered and have to rely on their wits and basic fighting skills to compete can be very engaging.
In a Gohan vs Naruto fanfic battle, I think Gohan would win. His Saiyan heritage gives him a natural advantage in terms of raw power. He can fly and has energy blasts that could overpower Naruto. Naruto is strong, but his powers are more about ninjutsu and chakra control. Gohan's Super Saiyan forms would be too much for Naruto to handle.
If Raditz survived in fanfiction, he would likely have a complex relationship with Goku. He might start to see the value in Goku's way of life. Goku could try to reform him, and Raditz could slowly become a more positive force in the Dragon Ball Z universe.