One idea could be Naruto crossing over into a world of powerful gods and having to learn their unique forms of chakra or magic. He could team up with a god - like being who initially underestimates him but then realizes his potential.
Maybe Naruto's godlike status makes him a target for various factions in different crossovers. In the One Piece world, female pirates could be part of his harem as they see his power as a means to achieve their own goals, and along the way, there are adventures and battles to protect his newfound relationships.
A crossover with the Naruto universe is also a possibility. Godlike Gohan could end up in the Hidden Leaf Village. His power would be a mystery to the ninja there. He could help Naruto and the others fight against a new threat, perhaps an ancient evil that was sealed away long ago but has now been released. His energy attacks would be different from the ninja jutsu, and he could teach the ninja some new ways of fighting.
One idea could be that Godlike Broly crosses over into the Dragon Ball Super universe and challenges Goku and Vegeta at their peak forms. His overwhelming power could force them to seek new power - ups and training methods.
One plot idea could be that Naruto is transported to the Avengers' universe. He uses his ninja skills, like shadow clones, to confuse the villains. For example, when facing Loki, Naruto creates hundreds of clones, making it hard for Loki to target the real one. Another idea is that the Avengers learn chakra control from Naruto, enhancing their own powers.
A crossover with the world of The Matrix could be fascinating. Jodie's ability to astral project and communicate with the other side could be related to the digital world of the Matrix. Maybe she discovers that the reality she thought she knew was just another layer of the Matrix. Or a crossover with the Avatar world. Jodie could travel to Pandora and interact with the Na'vi. Her powers might help in understanding the unique ecosystem and the spiritual connection the Na'vi have with their world.
One interesting plotline could be Naruto achieving powers far beyond the known limits and using them to bring peace to the entire ninja world in a unique way, like creating a new form of chakra that unites all shinobi. Another could be Naruto exploring different dimensions with his enhanced abilities.
Another plot could be that a strange curse is placed on Ino that makes her forget all her ninja skills. Naruto, with his godlike powers, delves into her mind to not only restore her memories but also unlock hidden potential within her. This journey inside Ino's mind could be filled with various challenges and revelations for both of them.
For a 'godlike saiyan crossover fanfiction', a crossover with the Marvel Universe would be exciting. Picture a godlike Saiyan arriving on Earth during the events of 'Avengers: Endgame'. They could help the Avengers in their fight against Thanos. Their super - strength and energy - blasts could turn the tide of the battle. Or perhaps a crossover with the 'Lord of the Rings' world. The Saiyan could be a powerful ally in the fight against Sauron, using their speed and power to take on the orcs and other dark creatures.
Well, you could do a crossover where Harry has the powers of a godlike being from Japanese mythology, like Amaterasu. He could have the power of the sun, using it to vanquish evil. Maybe he could also cross with a powerful African deity and incorporate their unique magic into his existing skills, creating a whole new set of spells and abilities.
One plot idea could be that Naruto, in his godlike state, has to train Kaguya to adapt to the new ninja world. Since she has been out of touch for so long, Naruto teaches her about new jutsus and ninja ethics.