Sure. Many fanfic writers like to delve into the relationships between characters. Chi Chi and Bulma have a long history in the Dragon Ball universe. A fanfic about their friendship might show how they support each other, deal with the crazy adventures their male counterparts get into, and bond over their own unique strengths and weaknesses. For example, Chi Chi's strong - willed nature and Bulma's intelligence could make for a great combination in a story about their friendship.
A mentorship relationship could be explored. Bulma, with her knowledge of technology and the world outside of martial arts, could mentor Chi Chi in certain areas. For example, teaching her about new inventions or different cultures. Chi Chi, in turn, could teach Bulma about discipline and family values.
There are various fanfictions that might explore Chi - Chi's death in Dragon Ball Z. Some might do it to explore how Goku and the other characters would react. In a sense, it could be a very dark and emotional take on the story, showing the grief and possible revenge motives of the characters left behind.
I haven't come across such a fanfiction myself. It goes against the general nature of their relationship in the original series. Chi - Chi loves Gohan deeply and is very protective of him.
Family is a common theme. Since they have a family in the Dragon Ball series, fanfictions often explore how they raise their kids. Another theme is love, of course, showing the depth of their relationship.
There are many. One type of fanfiction could be about Goku and Chi - Chi's courtship. Maybe it details how Goku finally realized his feelings for Chi - Chi. Another aspect could be their cultural differences, since Goku grew up with a different set of values as a Saiyan. Fanfictions might explore how they overcome these differences in their relationship.
One unique aspect is the exploration of female relationships in the Dragon Ball world. Since most of the focus in the original is on the male fighters, fanfictions about Chi - Chi and Maron give a different perspective. For example, they can show how the two deal with the male - dominated environment.
One reason could be a new, extremely powerful villain who targets Earth and Chi - Chi unfortunately gets in the way. Maybe this villain has a vendetta against Goku and decides to hurt him by killing his wife.
Well, perhaps Chi - Chi meets Goku at a new tournament. Goku is excited to see her, but Chi - Chi is a bit miffed that he didn't tell her he was participating. They then have a heart - to - heart talk about his love for fighting and her desire for a more stable family life. It could be a really emotional encounter with lots of reminiscing about their past and hopes for the future.
One great fanfiction could be 'Chi - Chi's New Friendship' which explores an unexpected bond between Chi - Chi and Maron. It delves into how they might support each other in the crazy world of Dragon Ball.