Katara is often a very popular character in Aang - related fanfiction. Her relationship with Aang in the original series gives a lot of room for exploration in fan - created stories. Writers can expand on their feelings for each other, their shared experiences in fighting the Fire Nation, and how their different bending abilities complement each other.
Toph is also a common and beloved character in such fanfiction. She could be paired with Aang in unique ways. For example, she could teach him earthbending in more creative and unorthodox methods. Or they could go on adventures where Toph's no - nonsense attitude and her powerful earthbending skills help Aang in unexpected situations.
Probably the main characters from the original work tend to be popular in fanfiction. They are well - known and have established personalities that writers can build on.
Sokka could be one of the main characters. He might be the one helping Aang with his schoolwork, especially in subjects like history or math, using his own knowledge and quick thinking.
Sokka would also be a common character. His strategic mind could be very useful in a different time period. He might be the one who figures out how to deal with the new situations they encounter while in the past. For instance, if they need to outwit an enemy in a historical battle, Sokka would be the one to come up with a plan.
Hinata is very popular. Her shy yet strong - willed nature makes for an interesting dynamic in fanfiction as Naruto's girlfriend. She already has a deep admiration for Naruto in the original series, so it's easy to build on that in fanfiction.
Female Naruto herself is obviously a very popular character in these fanfictions. After all, she is the central figure with the gender - swapped concept. Sasuke also remains popular as his relationship with female Naruto can be explored in new and exciting ways. Their dynamic can be more complex and filled with different emotions compared to the original story.
Well, Naruto himself is extremely popular in relation to them. He has connections to Kushina as her son, and his interactions with Kurenai also add to his popularity in these scenarios.
Katara could be one of the main characters. She might play a role in helping Aang through the process of opening his chakras, either with her healing abilities or just by being there to support him emotionally.
I think Rachel Morgan is often quite popular. Her strong will and unique powers make her a central figure in many fanfictions.
Megumi Fushiguro is popular as well. His cool and reserved demeanor, along with his powerful cursed technique, attracts a lot of fanfiction authors. They might write about his relationship with other characters, like his unspoken bond with Yuuji, or explore how he further hones his skills in different scenarios.
Peanut is often quite popular. His friendly and goofy nature makes him a favorite among readers. He gets into all sorts of silly situations that are fun to read about.