Sure. One thing to note is that different fanfictions will handle the 'Vegeta younger than Bulma' concept in various ways. Some might focus on the comical aspects of it, like how Vegeta's pride might be affected by being younger. Others could delve deeper into the emotional implications for both characters. You can search for tags like 'Vegeta younger than Bulma' or related keywords on fanfiction platforms to find stories that suit your taste.
There are definitely some out there. In these fanfictions, the younger Vegeta aspect can add an interesting dynamic to their relationship. It could lead to different power dynamics and character developments compared to the original series. Writers might play with how Bulma, being older, could be more experienced in certain areas while Vegeta is still growing, both as a person and in his power levels.
Yes, there are quite a few. You can start by looking on popular fanfiction websites like FanFiction.net or Archive of Our Own. Some stories might explore their relationship with the age difference as a central theme, while others may just touch on it briefly in the context of the overall story.