Well, in a 'Naruto x God of War stories' plot, perhaps the Nine - Tails within Naruto is seen as a powerful entity similar to the gods in the God of War universe. This could lead to a conflict where some of the gods in that world want to either control or destroy the Nine - Tails, and Naruto has to fight to protect it, with Kratos either helping or being an obstacle depending on the situation.
A possible plot could involve Naruto learning the combat styles of the God of War world. He is already a skilled fighter in his own universe, but in the God of War world, he might face new challenges. For example, the way weapons are used there is very different from his ninja tools. Kratos could be a reluctant mentor to Naruto, teaching him how to fight more brutally like in the God of War world. And Naruto, in turn, could teach Kratos about the power of friendship and loyalty which are strong aspects of Naruto's world. The two of them could then face a common enemy, like a powerful god who threatens both their worlds.
One idea could be that Naruto somehow gets transported to the world of God of War. He might team up with Kratos. Naruto's jutsu skills like Rasengan could be used in combat against the mythological beasts in the God of War realm.
Another plot idea is that Kratos somehow ends up in the Naruto universe. He could be mistaken for a powerful rogue ninja at first. His brute strength and combat skills would make him a force to be reckoned with. He might get involved in the conflicts between the ninja villages, and his no - nonsense attitude could either cause more chaos or actually help bring about peace in a rather unexpected way.
Well, it could be about Naruto somehow getting involved in the world of God of War 4. Maybe he teams up with Kratos. They could fight against some common enemies like powerful demons or dark forces that threaten both Naruto's world and the world of God of War. Naruto's jutsu combined with Kratos' brute strength would make for some epic battles.
One possible plot could be that Naruto is somehow transported to the world of God of War. He teams up with Kratos. Naruto's jutsu and his never - give - up attitude might impress Kratos. Together, they could face a common enemy, like a new powerful demon that threatens both their worlds. Naruto's ability to sense chakra could help them track the demon, while Kratos' brute strength and combat skills would be useful in direct battles.
Another possibility is that there is a new threat that emerges from the combination of the two universes. Some sort of evil entity that has the powers of both the Naruto universe, like the ability to use chakra, and the dark magic from the God of War world. Naruto and Kratos would have to learn to trust each other quickly in order to stand a chance against this new foe. They might start off at odds with each other due to their different backgrounds and fighting styles, but eventually realize that they need to work together.
Maybe Grayfia is on a mission in the Naruto world. She has to team up with Naruto to fight a common enemy. During their time together, they learn about each other's pasts and dreams. Naruto's never - give - up attitude impresses Grayfia, and her elegance and power intrigue Naruto. This could lead to a romantic relationship developing between them.
One plot idea could be that Naruto somehow ends up in Grayfia's world and they have to team up to face a common threat. Maybe a powerful dark force is endangering both their realms.
Maybe in the fanfic, the technology from Gears of War is introduced to the Naruto world. The Gears team arrives in Konoha, and they start sharing their knowledge of advanced weaponry and combat tactics. Naruto is intrigued by the big guns and armored suits. They then have to fight against an evil ninja clan that has somehow got hold of some of the Gears' technology and is misusing it to take over the ninja world.
Well, in this fanfic, maybe Naruto's chakra is mistaken for an Infinity Stone - like a new, unknown power source. The Avengers, being intrigued, try to understand it. Meanwhile, Naruto, upon learning about Thanos' plan, decides to use his Sage Mode to track Thanos down. He teams up with Iron Man, and they come up with a plan that combines Naruto's ninjutsu and Iron Man's technology to take on Thanos and his minions.
A simple plot could be that Naruto and Yugito are from different villages involved in a war. They cross paths during a battle and Naruto saves Yugito's life. Yugito is then intrigued by Naruto's selfless act. As the war continues, they keep running into each other and start to develop feelings. They try to keep their relationship a secret as their villages are still at odds, but their love becomes stronger with each encounter.
One possible plot could be that Naruto somehow gets transported to the Berseria world. He might have to learn the ways of that world, like the artes used in Berseria, while also trying to find a way back home. His ninja skills could be a unique advantage or a source of confusion in the new world.