Yes. In many fanfics, Naruto is often depicted as stronger than Jiraiya. Naruto has the potential to grow far beyond his master. He has unique powers like the Nine - Tails chakra and has mastered many advanced jutsu over time, which can make him stronger in fan - created storylines.
Well, Naruto has had the advantage of learning from many great shinobi over time. He also has a unique bond with his friends which could potentially give him more strength. Minato, on the other hand, had a shorter lifespan to develop his powers. Naruto has had more time to grow and surpass his father in strength.
Well, it depends on the specific fanfic. Some fanfictions might give Naruto an edge over Madara by, say, having him master some super - secret jutsu that completely nullifies Madara's powers. Or they could boost Naruto's physical and chakra capabilities to an extent where he can easily defeat Madara. However, in the original Naruto lore, Madara is an extremely powerful foe, but fanfic authors have the freedom to change the power balance as they see fit.
Well, it depends on the specific fanfic. Some fanfics might focus on Naruto's growth post - Shippuden and give him abilities that make him stronger than Itachi. For example, they could have Naruto master a new form of Sage Mode that gives him an edge over Itachi's Sharingan - based techniques. However, other fanfics might keep Itachi's power level relatively high and not have Naruto overtake him. So, there's a lot of variation among different fanfics.
In some fanfics, Naruto can be made stronger than Goku. Fanfic writers have the freedom to manipulate the power levels and abilities of characters. They can give Naruto new and overpowered abilities that surpass Goku's. However, in the original canon of their respective series, Goku has extremely high power levels and abilities that are on a different scale.
Naruto is stronger in fanfiction because of his ability to connect with others. He has made friends all over the ninja world. This network of friends often provides him with support in battles, whether it's intel or actual combat help. Also, his training under Jiraiya was very comprehensive. Jiraiya taught him not only combat skills but also how to be a better person. This made Naruto grow both physically and mentally. And compared to Sasuke, Naruto seems to be more adaptable to different fighting styles in fanfiction, which gives him an edge in combat.
Well, in some fanfictions, Naruto might be considered stronger because he has access to more powerful forms and jutsus. He might have mastered the Nine - Tails' chakra in a more advanced way than Minato could. Also, Naruto has trained with many powerful shinobi, which could give him an edge in strength compared to Minato.
Often, in fanfic, Naruto is made stronger than Itachi because the writers want to explore new story arcs. If Naruto is stronger, new and exciting battles and relationships can be created. For instance, Naruto could be the one to protect Sasuke from Itachi in a different way. Also, Naruto's positive and determined nature makes him a popular character to be super - powered in fanfics.