Yes. Her stories are important. They carry the history of the Avatar world. They can teach the younger generation about the past battles and how they overcame difficulties.
Toph's age in the comics can be a bit ambiguous. Different comic series might portray her at different stages of her life. Generally, though, she's often shown as being in her youth, with her age ranging from around 12 to 20, depending on the context.
She might tell stories about her adventures as an earthbender. For example, her experiences fighting against the Fire Nation and how she used her unique earthbending skills to overcome challenges.
First, think about Toph's character traits. She's strong - willed, independent, and a great earthbender. You can start with a situation that challenges these traits. For example, put her in a place where she can't use her earthbending easily. Then, develop a plot around how she overcomes this. Also, remember to keep her unique way of speaking and her sense of humor.
She was from a wealthy family but she didn't conform to their expectations. Instead, she chose to follow her own path and become an earthbending master. She was also one of the first female earthbending masters in a long time.
There was a time when Toph got separated from the group in a large cave system. But instead of panicking, she used her earthbending to feel the layout of the caves and find her way out. Along the way, she also discovered a hidden underground spring, which was a valuable resource for the nearby town.
A great avatar toph fanfic could focus on her relationship with other characters. Like a story where she forms a deep friendship with a non - bender. They go on a journey together and she has to protect them using her earthbending skills. This would show a different side of Toph, her loyalty and caring nature outside of just being a tough bender.
The ages of the characters in the Avatar comics can vary quite a bit. Some are teenagers, while others might be adults, depending on the specific story arc and character development.
A really interesting plot could be that Toph discovers she has some unique power related to her unborn child that has never been seen before in the Avatar universe. This could attract the attention of both friends and foes. There could also be a plot where Toph is pregnant during a time of unrest in the world, and she has to balance her pregnancy with her responsibilities to protect her people or help the Avatar. Or perhaps she goes on a journey to find a special place or object that is said to ensure a safe pregnancy and birth for her child.
You can try looking on fanfiction websites like Archive of Our Own (AO3). It has a large collection of Avatar fanfictions, and you can search specifically for Toph - related ones with the 'pregnant' tag. Another option is FanFiction.net, though the search functionality might be a bit less refined.