Well, another place could be Naruto - related forums. There are often threads where fans share and discuss their favorite fanfics. Some might be specifically about Zabuza's sword. You can join in the conversation and ask for recommendations too.
Sometimes, social media groups dedicated to Naruto can also be a good source. For example, on Facebook or Reddit, there are groups where Naruto fans gather. Post a request for Naruto and Zabuza's sword fanfics, and I'm sure some members will be able to point you in the right direction.
Maybe he defeated Zabuza in a battle and took it as a trophy.
A minor character like a blacksmith's apprentice could find Zabuza's sword. Instead of using it for fighting, they study it closely. They discover a unique metal alloy in the sword that they use to create new and improved weapons for their village. This not only changes their own fate as they become a renowned blacksmith, but also the fate of the village as they now have better weapons to defend themselves.
Well, if Naruto gets Zabuza's sword in the fanfic, it could change his entire approach to battles. Zabuza was known for his swordsmanship skills. Naruto might start training with the sword under the guidance of someone like Kakashi. He could learn to infuse his chakra into the sword, creating new and powerful attacks. Maybe he would even develop his own special jutsu that combines the sword and his existing ninjutsu.
Maybe he finds it after a battle where Zabuza was defeated. It could have been left behind, and Naruto, seeing its potential, decides to take it up.
Good writing style also matters. The descriptions of the sword, like its appearance and the way it cuts through things, should be vivid. If the author can make you feel like you're right there in the Naruto universe, watching the sword in action, then it's a great fanfic. Also, it could explore the backstory of the sword in more detail than what was shown in the original series, which would make it really engaging for fans.
Another plot could be that Zabuza's sword ends up in the hands of an enemy of Konoha. Konoha sends a team of ninjas, including some of the younger generation like Naruto and his friends, to retrieve it. Along the way, they learn about Zabuza's legacy and the true strength of the sword. They have to battle the enemy who has already started to unlock some of the sword's powers, but in the end, they manage to get it back and decide what to do with such a dangerous weapon.
Well, perhaps Naruto takes Zabuza's sword and it becomes a symbol of his growth. He may face challenges from those who think he's unworthy of possessing such a weapon. Also, he could modify the sword to better suit his fighting style, like adding some of his own chakra -infused elements to it.
One possible consequence could be that Naruto gains a new and powerful weapon. This sword might have unique abilities that could enhance his combat skills. He could use it to intimidate his enemies or as a last - resort weapon when his regular jutsu are ineffective.
Well, Naruto getting Zabuza's sword could signify a new level of respect from an unexpected source. It might make Naruto more confident in his abilities as he has been recognized by a strong and feared ninja like Zabuza. This could also lead to Naruto exploring new fighting styles, incorporating the use of the sword into his combat. It could also be a symbol of Naruto's growth in the eyes of others, and it might inspire him to train harder to live up to the trust that Zabuza, in this fanfic scenario, has placed in him.
The story could explore how Naruto adapts to having a weapon like Zabuza's sword. Since Naruto is used to his own hands - on combat and ninjutsu, the sword would be a new addition. He would have to train to master it. Maybe he'd seek out old friends or allies of Zabuza to learn more about the sword's history and proper use. This could open up new storylines and relationships for Naruto in the fanfic world.