One possible fanfiction could be about Vegeta's attempts to balance his training with family life. He might struggle to find time for Bulma and their family while also trying to keep up with the threats in the Dragon Ball Super universe. For example, he could be training for a new powerful enemy, but Bulma wants him to be more present at home. So he has to find a way to make both work.
One great fanfiction idea could be that Vegeta takes Bulma on a special training trip. He wants to show her the different planets he has trained on. This would be a unique adventure for them both, allowing Bulma to see the vastness of the universe Vegeta has experienced. It would also strengthen their relationship as they face various challenges together during the journey.
Most mainstream platforms don't allow or promote 'lemon' fanfictions due to their adult - nature. For clean and interesting 'Dragon Ball Super Bulma' fanfictions, look for ones that focus on her relationships in a non - sexual way, like her friendship with the Z - Fighters or her role in scientific adventures. You might find some really creative stories that way.
The plot could be about Bulma getting kidnapped by a new villain. Vegeta goes on a rampage to find her. He battles through hordes of minions until he finally reaches the villain's lair. There, he has an epic battle and rescues Bulma. Afterward, he realizes how much he truly loves her and vows to protect her better.
One possible scenario could be Goku and Bulma going on a quest together to find a new type of Dragon Ball that has unique powers. They might face various challenges along the way, like dealing with new villains who also want the Dragon Ball. Bulma could use her intelligence to outwit the enemies while Goku uses his strength to fight them off when necessary.
One interesting plot could be a time - travel related one. Vegeta and Bulma accidentally get sent to the past. There, they have to deal with the different versions of their friends and enemies. They also have to find a way to get back to their own time while not disrupting the timeline too much. This would be full of adventure and also explore their relationship in a different historical context.
FanFiction.net is a great place to start. They have a large collection of 'Dragon Ball Super' fanfictions. You can use the search function and filter for stories that feature Bulma. Just be sure to read the summaries and tags to avoid any inappropriate content. Another option is Archive of Our Own, which also has a wide range of fan - created stories.