You can start by looking on fanfiction - specific websites like FanFiction.net or Archive of Our Own (AO3). These platforms have a large collection of Naruto - related fanfictions, and you can simply search for 'naruto feral animal' in their search bars.
Some 'naruto feral animal fanfiction' focuses on Naruto's transformation into a feral - like state himself. This could be due to a curse or a new power he unknowingly unlocks. In this state, he has to learn to control his new instincts while still being the hero the village needs. It makes for an interesting exploration of his character.
In regular Naruto fanfiction, the characters usually act within the bounds of the known Naruto world's social and cultural norms. However, in 'naruto feral fanfiction', Naruto might break those norms as he follows his feral instincts. For example, he could act more on impulse and aggression rather than strategic thinking in some situations. This can lead to very different storylines and character developments compared to regular fanfiction.
One interesting idea could be Naruto growing up in the wild and having a more primal connection to nature. Maybe he has unique combat styles that are based on animal instincts.
There are some 'naruto feral fanfiction' that focus on Naruto's relationship with the animal - like summons in a more feral way. Maybe he has to adapt to their wild nature more closely and it changes his own behavior and abilities in the story.
Survival is a very common theme. Feral animals are often in situations where they have to fight for their lives, find food, and shelter. For example, in 'The Call of the Wild', Buck has to quickly learn how to survive in the frozen Yukon.
One interesting feral animal transformation story is the werewolf legend. In many cultures, it's believed that a human can transform into a wolf - like, feral creature under certain conditions, like a full moon. Another could be the stories of selkies in Celtic mythology. Selkies were said to be seals that could transform into humans. They often had tales of love and loss associated with their transformations between the two forms.
One interesting feral animal transformation story could be about a stray cat that transforms from a timid, scruffy creature into a confident and well - groomed pet. It might start by being adopted by a kind person. The cat slowly changes its behavior, becoming more trusting and affectionate over time, almost like it's transformed from a wild, feral state to a domesticated and loving companion.
One interesting aspect could be the exploration of Naruto's character in a more wild or unrestrained state. It might show a different side of his power and personality that we don't often see in the original series.
One common theme is the idea of acceptance. Hinata has to accept Naruto's feral side, which can be quite different from his normal self. Another theme is protection. Naruto, even in his feral state, often feels the need to protect Hinata.