A popular trope is the SI being a key figure in a prophecy. In the Avatar universe, prophecies play a big role. So, in fanfiction, the SI might be the one foretold to bring about a great change, whether it's uniting the four nations in a new way or defeating a new, greater threat. Power - up tropes are also common. The SI could start off as a weak bender or non - bender and through various trials and experiences, gain extraordinary powers. This often involves training with the original characters or finding some hidden power source within the Avatar world. Additionally, the redemption arc trope can be seen. Maybe the SI was on the wrong side initially but then sees the error of their ways and joins the heroes, which makes for an interesting character development story.
The 'power - couple' trope is also quite common. Aang, as the Avatar, and Katara, a powerful waterbender, are seen as a formidable duo. Fanfics often explore how they use their combined powers to defeat enemies and save the world. Also, the 'misunderstanding' trope where they have a fight because of a miscommunication but then make up is popular. It adds drama and emotion to their relationship.
One common trope could be the white man being an outsider who has to adapt to the unique cultures in the Avatar world. For example, he might struggle to understand the bending arts at first but then gradually master them through perseverance.
Zuko is extremely popular as well. His complex character arc, from being a villain - like figure to a hero, is very engaging. People love to see his transformation and how he overcomes his inner demons and the expectations of his family and nation.
There's also Sokka and Suki's relationship. Suki was a strong and independent warrior from Kyoshi Island. Sokka was initially attracted to her strength and confidence. Their love story was fun and full of action. They had their ups and downs, like when Sokka was confused about his feelings, but in the end, they had a great relationship that showed two different yet complementary personalities coming together.
One great aspect of Avatar The Last Airbender male self - insert (SI) fanfiction is the ability to rewrite the story from a different perspective. For example, you could create a male character who has a unique bending ability not seen in the original series. This character could then interact with the existing cast, like befriending Aang and teaching him some new tricks. It adds a fresh layer to the already rich world of Avatar.
There are some that deal with the relationship between Sokka and Suki. These fanfictions might add extra layers to their bond, perhaps showing how they deal with challenges in their relationship in a post - war world. But often, the best ones are not just about the 'lemon' elements but incorporate the rich world - building of the Avatar universe, such as the different bending techniques and cultural aspects of the four nations.
One popular storyline often involves the main character navigating complex relationships within the harem. For example, Aang might have to balance his duties as the Avatar with the emotions and needs of different characters in the harem. Another common plot is the development of individual relationships, like how Zuko could form a unique bond with a member of the harem while also dealing with his own redemption arc. Some fanfics also focus on the cultural differences between characters in the harem, which adds depth to the relationships and the overall story.
Sakura from Naruto is often included in these crossovers as well. Her skills as a healer and her growth as a strong female character can add depth to the crossover stories. She could potentially learn new forms of healing from the Avatar world or teach her own medical ninjutsu to Avatar characters.
I'm not really into promoting lemon fanfictions as they often contain inappropriate or non - canon sexualized content. However, there are many great non - lemon fanfictions for 'Avatar The Last Airbender' that focus on character development, new adventures, and exploring the rich world of the show. For example, some fanfictions might explore what would happen if Aang had to face a new type of enemy not seen in the original series.
When creating a male character for Avatar The Last Airbender SI fanfiction, think about his goals. He could be on a quest to find a long - lost relative who was kidnapped by the Fire Nation. His journey would then be filled with all kinds of adventures and encounters. He might meet Zuko along the way and have a complex relationship with him, either as an enemy at first or a reluctant ally.