There are fanfictions that might depict young Korra's adventures outside of her normal training. Maybe she stumbles upon a hidden place in the Spirit World while still young. This could lead to her learning unique spiritual lessons that shape her into the Avatar we know later. It would be full of mystery and discovery.
One interesting Korra OC fanfiction could be about an OC who has the power to control a unique element not seen before in the Avatar world. For example, an OC that can manipulate light in various ways, like creating illusions or using concentrated beams as weapons. This would add a new dynamic to the existing power system in the Korra universe.
One interesting Korra and Naruto fanfiction could be about them teaming up to fight a common enemy from both their worlds. For example, a dark force that can manipulate the elements in the Avatar world and also has some sort of ninjutsu - like abilities in the Naruto world.
In some male Korra fanfiction, a male inventor creates new tools for Korra to use in her bending. This not only aids her in her adventures but also starts a story about the combination of technology and bending in the Avatar world.
One interesting Naruto Korra fanfiction could be about a crossover adventure where Naruto and Korra team up to fight a new common enemy. They might combine their unique jutsu and bending abilities to overcome the threat.
Some Korra x Naruto fanfiction stories focus on a crossover tournament. Imagine a tournament where benders from Korra's world and ninjas from Naruto's world compete. Korra and Naruto are the representatives of their respective worlds. They start off as rivals but as they watch each other's battles, they start to understand each other's strengths. As the tournament progresses, they team up against a common enemy who is trying to disrupt the tournament for their own evil plans. This kind of fanfiction combines the action and unique abilities of both universes.
I'm not really into that kind of fanfiction. However, some popular fanfiction platforms like Archive of Our Own might have such stories. You can search there using the tags 'korra' and 'aang' to find relevant works.
For Legend of Korra fanfiction, you could write about an alternate universe where the Avatar cycle is broken. Korra has to figure out how to fix it while dealing with the chaos that ensues. You might also consider a story where Korra forms an unexpected alliance with a group of non - benders who have developed their own form of combat to rival bending. Additionally, a fanfic that delves into the relationship between Korra and Asami in more depth, showing their daily lives and how they contribute to the rebuilding of Republic City together, would be really engaging.
One idea could be a crossover where Naruto and Korra meet and have to team up to defeat a common enemy. Maybe an ancient evil that threatens both their worlds. Another could be a story about Korra learning some of Naruto's signature jutsu and incorporating them into her own fighting style.
One idea could be exploring Korra's early training days in more detail. Maybe she has a secret adventure during that time that wasn't shown in the original series. Another could be a fanfiction where Korra has to team up with an unexpected ally from the Spirit World to save Republic City from a new threat. A third idea is to write about what would happen if Korra lost her bending abilities for a while and had to learn to fight and defend without them.
One idea could be a time - travel plot where Korra is sent back in time to the era of Naruto. She has to adapt to the different world and also help Naruto in some way, like against a new threat that she has knowledge of from her own time. Another could be a crossover adventure where they both end up in a strange new dimension and have to rely on each other's skills to find their way back home.