Perhaps a plot where a magic - based enemy has cast a spell that links the Naruto and Dragon Ball worlds. Naruto and Chichi are two of the characters affected. They start to share dreams and visions, which leads them to meet. At first, they don't understand each other's worlds, but as they communicate, they learn from each other. Naruto could teach Chichi some of his ninja techniques, and Chichi could show Naruto how to use ki energy in a different way. Together, they embark on a journey to break the spell and in the process, they become good friends and allies.
Well, it could be about Gumball and Chichi going on an adventure together in a magical world. Maybe they discover a hidden land full of strange creatures and have to work together to find their way back home.
One possible plot could be that Bulma and Chichi team up for a scientific - martial arts tournament. Bulma uses her intelligence to create unique gadgets for Chichi to use in the combat part of the tournament. This brings them closer as they train together and face various opponents.
Perhaps there's a prophecy that Naruto and Chichi together can stop an impending doom. But they come from different worlds and cultures. Naruto has to convince Chichi to believe in the prophecy and join him. Along their journey, they learn about each other's worlds, like Naruto shows Chichi his ninja village and its unique customs, and Chichi teaches Naruto about her family traditions. Their relationship grows as they work towards fulfilling the prophecy.
Well, it could be that Chichi and Launch meet in an unexpected situation. Maybe they start off as rivals but gradually realize they have more in common than they thought. And then, a moment of shared understanding leads to the kiss.
Well, one possible plot could be that Goku is under some sort of mind - control during a fight and accidentally hurts Chichi. Maybe an enemy has found a way to manipulate Goku's actions, and in his trance - like state, he strikes out at Chichi without realizing it.
In a 'chichi and goku married' fanfiction, the plot could revolve around their family growing. They already have Gohan, and perhaps they decide to have more children. There could be cute family moments like Goku trying to understand modern parenting techniques that Chichi is into, and also some action when enemies target their family due to Goku's reputation.
Perhaps they are at a party on Kami's Lookout. There's a beautiful sunset in the background. Chichi has been waiting for Goku to make a move for a long time. Then, Goku, feeling a newfound courage, leans in and gives her their first kiss. The kiss might be a bit clumsy as Goku is not very experienced in such things, but it's full of love.
One plot idea could be Gohan getting into trouble at school and Chichi having to deal with it. She might teach him how to handle bullies or study better.
Yes, there are some out there. You can try searching on popular fanfiction websites like FanFiction.net or Archive of Our Own. Just be aware that the quality can vary greatly.
One plot could be Goku and Chichi deciding to take a family vacation. They go to a new planet with strange powers. Goku wants to train there, while Chichi is more interested in exploring the local culture. It leads to some comical and heartwarming moments as they try to balance their different interests and keep their family together.