Obviously, Goku would be a main character. He is the protagonist of Dragon Ball Z. Vegeta as his rival - turned - ally would also be there. Bulma might be involved too, as she is often the one with the technological know - how. And Trunks, since he has knowledge of different timelines, could be a key figure in understanding the future they are watching.
The main characters would most likely include Goku, who is always eager to protect the Earth and his friends. Vegeta, because of his power and his complex relationship with Goku. Krillin, as Goku's long - time friend, would also be present. And Future Trunks, since he comes from a different future and could provide valuable insights about what they are seeing in the future they are observing in the fanfiction.
Goku and Vegeta are likely to be main characters. They are the two most powerful Saiyans and often at the forefront of any major threat in the Dragon Ball Z universe. Also, Piccolo, as one of the smartest and powerful characters, would probably play an important role.
Bulma is a likely main character. She's always been part of the group and would bring her intelligence and her gadgets to the beach setting. Gohan too, as he often gets involved in the group's adventures. His kind nature would make him a great character to have around on the beach, helping others and having fun.
Obviously, characters from Konoha will be central. Naruto might be one of the main characters as he often represents the heart of Konoha. His ability to change things could be key in how Konoha responds to the future it sees.
Since it's strq related, the main characters are probably the members of strq.
Obviously, Bardock himself. And of course, Goku would likely be in it since he's Bardock's son. Vegeta might also show up, as he is an important Saiyan character. There could also be other Saiyans like Nappa or Raditz, especially if the story is about Bardock trying to reform or reunite the Saiyan race.
In 'Dragon Ball Z Watches the Future' fanfiction, a possible plot is that they watch a future where Earth is completely destroyed. This spurs them into action to find ways to prevent it. They might search for new allies or artifacts that could help. Maybe they discover that an old enemy they thought was defeated has a long - term plan that will culminate in Earth's destruction. So, they start looking into ways to counter that plan, like trying to find a way to seal the enemy permanently or find a weakness they didn't know about before.
Another good pairing could be with Bulma. Since she is his mother in his own timeline, but in fanfiction, they could have a different kind of relationship. Maybe she helps him with some advanced technology to enhance his fighting abilities.
Obviously, the Z Fighters like Goku, Vegeta, Piccolo, etc. are the main ones as they are the ones doing the watching.
Obviously Naruto is one of the main characters since it's about him watching the future. Sasuke would also likely be a key character, given their long - standing relationship. And Kakashi, as Naruto's former teacher, could play an important role too.
Goku is very likely. He's the main character in Dragon Ball Z. If there's a second chance scenario, his decisions and actions would have a massive impact on the story. He could use the second chance to protect his loved ones better or to reach an even higher level of power.
Goku is almost surely a main character. His never - ending pursuit of strength and his role as the protector of Earth make him a central figure. Bulma could also be a main character in this fanfiction. She is highly intelligent and often provides crucial technological support in the Dragon Ball universe. Also, Goten might be involved as he is Goku's son and could play a part in whatever events are unfolding in this 'future' - related story.