I'm not sure there are many official fanfictions that combine Anne Frank and Goku in such a way. However, if it were to exist, it would be a very strange and interesting crossover. Goku is a powerful Saiyan from a fictional universe of Dragon Ball, while Anne Frank was a real - life victim of the Holocaust. Their worlds are so different that it would be a huge creative challenge to bring them together in a believable story that lasts till the end of time.
Honestly, comparing the strength of anime Goku and manga Goku is tricky. Both versions have their unique strengths and challenges depicted differently, making it hard to make a clear-cut comparison.
One common theme is the power of friendship. Goku often relies on his friends' support and they on his in these fan fictions. Another theme is self - discovery. Goku usually finds new aspects of his power or his being. And of course, the theme of protecting the universe is always there as Goku is a defender by nature.
Well, Vegeta would be a likely character. He might be initially suspicious of the female Goku. Maybe he thinks she's a threat or just can't believe there's another Goku - like being. He could be there to add some comical moments as he tries to understand the situation.
One great 'until the end time goku fan fiction' could be the one where Goku has to face an ancient evil that is threatening the entire universe. In this fanfic, Goku discovers new powers within himself as he battles against time running out. It's really exciting to see how he overcomes the odds using his Saiyan spirit.
In general, it's a bit of a toss-up. The strength of Manga Goku and Anime Goku can vary depending on the specific arcs and battles. Sometimes, it might seem like one is stronger in a particular situation, but that could change in another.
In the fanfiction, Goku could sense the great despair and hope within Anne Frank. He is drawn to her and appears in her world. Goku starts by providing food and safety for Anne Frank and those in hiding using his instant transmission ability. As they interact, Anne Frank's wisdom and courage start to influence Goku. They form a bond that transcends time and space. Eventually, they work together to bring peace and hope to all of existence, remaining side by side till the end of time.
Another possible main character could be the villain that forces the two Gokus to meet. This villain could be a new, super - powerful threat that the two Gokus need to deal with. Their meeting becomes a crucial part of the story to defeat this powerful foe.