Well, it depends on the specific fanfiction. There are countless Naruto fanfictions out there, and while some might depict Naruto as secretly a summon, others may not touch on this idea at all. It's all about the creativity of the fanfiction authors.
In some Naruto fanfictions, it's possible for Naruto to summon snakes. Fanfiction often takes creative liberties, so writers might give Naruto this ability for the sake of an interesting plot twist or a new power - up. It allows for different storylines to develop, like Naruto using snake - based jutsus or having a connection to snake - related elements in the Naruto universe that he doesn't have in the original series.
One interesting storyline could be a young ninja who discovers a rare and powerful insect summon. For example, they might find a group of glowing beetles that can create illusions. The ninja then has to learn how to control and use these beetles in battles against other powerful foes in the Naruto universe.
Maybe Jiraiya. Since Jiraiya was Naruto's mentor and taught him a lot of things. He might have some knowledge about summoning kami and pass it on to Naruto.
It could be fire - breathing dragons. Given Naruto's own energetic and passionate nature, fire - breathing dragons would be a fitting match. They could add a new level of destructive power to his arsenal.
Sure. Fanfiction gives a lot of creative freedom. Some fanfic authors might come up with special circumstances or new abilities that enable Naruto to summon the Kyuubi. Maybe he discovers a hidden jutsu or makes a pact in the fan - made - up world of the story. This can make for really interesting reads as it twists the original Naruto story in unexpected ways.
Naruto's character would become more in tune with nature. Dragons are often seen as symbols of nature's power. By having a dragon summon, he would start to understand the delicate balance of nature better. He might also gain a new perspective on his own power and how it fits into the larger scheme of things. This could lead to him being more empathetic towards other creatures and more protective of the natural world around him.
Rock Lee could be an interesting human summon. His extreme dedication to training and unique fighting style would make him a valuable asset in battles. He could be summoned to help Naruto when facing opponents with strong physical abilities.
In Naruto fanfiction, a bat summon could be really interesting. Maybe it could be a special bat that has unique abilities like echolocation used in combat or the ability to turn invisible in the dark. It could be a summon that only a certain character with a connection to the night or shadowy elements could call upon.
One great Naruto bird summon fanfiction is 'The Soaring Summon'. It focuses on a young ninja who discovers an ancient bird summon contract. The story has great action scenes as the character trains with the summoned birds and faces off against enemies. The bond between the ninja and the birds is really well - written.