Well, the fight between Goku and Vegeta in the Saiyan Saga is quite memorable. It was the first time we saw two powerful Saiyans battle it out. Also, the appearance of the Dragon Balls and the wishes made throughout the story are very interesting parts of the original story.
Some 'Dragon Ball Z Fanfic' worth checking out are 'The Lost Saiyan'. This fic tells the story of a Saiyan who was lost in space and finally makes his way to Earth. 'Piccolo's Secret Training' is another one. Here, Piccolo undertakes a training that could change the balance of power. And 'The Dragon Ball Hunt' is an exciting fanfic where characters are on a quest to find all the Dragon Balls for a very different reason than in the original.
One great Bardock in Dragon Ball Z fanfiction is often depicted as a fearless and noble Saiyan. He is shown as a warrior who, despite the cruel nature of the Saiyan race at that time, had a sense of honor. In some fanfictions, he manages to break free from the control of Frieza in more creative ways than in the original story, making his character even more complex and interesting.
A popular fanfic is 'FighterZ: The New Challenger'. In this story, a new character is introduced who has a unique fighting style. It's interesting because it blends the existing Dragon Ball FighterZ lore with new elements. The author does a great job of character development, especially for this new character, and it keeps you hooked from start to finish.
A popular Yamcha fanfiction is 'Yamcha's New Beginnings'. In this one, Yamcha decides to start anew after feeling left behind by his friends. He goes on a solo adventure, meets new allies and enemies, and in the process, he redefines himself and his place in the Dragon Ball universe. It gives a fresh perspective on his character.
There's a fanfic called 'Goku's Hidden Power'. In this story, Goku discovers a new level of power within himself that even the Kais didn't know about. It delves deep into Goku's character, exploring how he copes with this newfound strength and the responsibility that comes with it. The action scenes are also very well - written.
Well, 'Dragon Ball: Legacy of the Saiyans' is a top - notch fanfic. It explores the backstories of the Saiyans in a more in - depth way than the original series. There are detailed descriptions of their culture and how it influenced the characters we know. 'Goku's New Adventure' is also a great read. It takes Goku on a journey that is different from the canon storyline. He faces new enemies and has to learn new techniques to overcome them. And then there's 'The Dragon Ball Multiverse Fanfic'. This one plays around with the idea of different universes in the Dragon Ball world, which is really fascinating.
The Tournament of Power arc is one of the best. It brought together fighters from different universes, creating intense battles. Goku and his team had to face powerful opponents and strategize to win. The stakes were high as universes could be erased if they lost. It also showed great character development, like Vegeta's growth and his new form.