Goku might seem like the strongest at first glance because of his ability to reach such high power levels like Ultra Instinct. But Naruto has the advantage of his strategic mind and the ability to use a variety of jutsus. Sonic's speed could also be a game - changer. If the fight is in a closed space, Goku's power might be more dominant. But if it's a large area, Sonic could use his speed to his advantage and Naruto could use the environment with his ninjutsu. So it's not straightforward to determine who is the strongest.
It's really hard to say. Goku has the power to destroy planets and reach incredible levels of strength with his Super Saiyan forms. However, Naruto has the power of the tailed beasts and his own sage mode which gives him a huge boost in power. And Sonic, while he may not have the raw power like the other two in terms of destruction, his speed is so great that he could potentially outmaneuver both of them. So it really depends on the situation and how the author writes it.
One interesting 'naruto goku sonic fanfic' could be about a crossover adventure where Naruto, Goku, and Sonic team up to save a multiverse that is being threatened by a powerful villain. They each bring their unique abilities like Naruto's ninjutsu, Goku's ki attacks, and Sonic's super speed to the fight.
Well, in this kind of fanfic, it's not so simple to decide who is stronger. Goku's power levels keep increasing exponentially as he reaches new super saiyan forms. He can destroy planets with his power. Naruto, though, has the ability to harness the power of the nine - tailed fox which is also extremely powerful. Moreover, Naruto has his own unique chakra - based attacks. If they were to fight, Goku might start off with an advantage due to his speed and power. But Naruto is a very quick learner and could adapt during the fight. Also, Naruto has his friends and allies that could potentially tip the balance in his favor in a more complex battle scenario.
I think Zeno would be a really tough opponent. Zeno has the power to erase entire universes, and a Goku and Goku Black fusion, despite being extremely powerful, would have a hard time against such a being with god - like powers.
Some niche fanfic communities on social media platforms might also be a good place to look. For example, on Reddit, there could be dedicated subreddits where fans share and discuss 'naruto goku sonic fanfic'. However, you might need to do some digging around to find the really good ones.
A plot could be that their worlds start to merge. Sonic's world of Mobius, Naruto's Hidden Leaf Village and Goku's Earth start to blend together. Sonic has to deal with the strange new chakra energy, Naruto is fascinated by Sonic's speed and Goku is intrigued by Naruto's unique jutsus. They have to figure out how to separate the worlds again while also fighting off threats that emerge from the chaos of the merging worlds.
It could be Frieza. Frieza is a powerful and evil character from Goku's universe. He might see the combined power of Naruto and Goku as a threat and try to eliminate them. He could also be interested in the unique powers that Naruto has, like the Nine - Tailed Fox's chakra, which he might want to use for his own evil purposes.
In my opinion, Goku has more experience in fighting powerful opponents on a universal scale. He has fought against gods and demons. Sonic, on the other hand, mainly deals with threats to his own world. But Sonic's speed is not to be underestimated. He could potentially outmaneuver Goku and find a weakness. However, Goku can constantly increase his power during a fight. So, again, it's not clear who would win.
In a Goku Naruto crossover, both characters have their own strengths. Goku's physical strength and energy attacks are off the charts. His ability to instantly teleport and sense ki gives him an advantage in combat. Naruto, though, has a unique power system. His connection to the Nine - Tails and his ability to use different types of chakra make him a force to be reckoned with. If we consider a battle, Goku's power might seem greater on the surface. But Naruto has the advantage of being able to surprise his opponents with his ninjutsu and clones. Also, Naruto has a strong willpower that has allowed him to overcome many tough situations, which could play a role in a fight against Goku.
Well, in such a fanfic, Naruto would be amazed by Goku's super strength and ability to fly. Goku, on the other hand, would be intrigued by Naruto's ninja skills. They could exchange fighting techniques. Maybe Naruto would learn about ki control from Goku, and Goku would pick up some stealth moves from Naruto. And their friendship would likely develop as they face various challenges together.
Well, Goku's super strength and fighting abilities could make him a powerful ally or a formidable foe in the Naruto world. His ki powers might be seen as a strange new form of chakra. He could also teach the Naruto characters some of his unique fighting techniques, like the Kamehameha wave.