It could lead to a completely different character arc and story development. Maybe she'd have a softer side or face different challenges due to gender expectations in the Dragon Ball universe.
If Broly joined the Tournament of Power, it would be an absolute game - changer. His raw power is off the charts. He could easily take on multiple opponents at once. He might start by targeting the strongest foes, like Jiren. His uncontrollable rage could work in his favor, as opponents would be intimidated. However, his lack of teamwork skills could also be a drawback. But with his power, he could probably just brute - force his way through many battles.
Broly's sad tale is a complex one. He was a Saiyan with incredible potential, but his own people rejected him. The Saiyans were afraid of his power and banished him to a dangerous planet. Growing up in isolation, he developed a violent and angry nature. His only connection to his past was his hatred for Goku, which was kind of misdirected. This hatred drove him to constantly seek revenge, but really it was all because he was so alone and mistreated as a child. He was a victim of his own people's fear and jealousy.
Well, it could be about Broly's experiences in hell. Maybe it shows his struggles, his encounters with other hellish beings, or his journey to either find a way out or gain power within that infernal place.
It's mainly about the story of Broly in the form of a light novel. It might explore his character, his powers, and his place in the Dragon Ball universe in more detail through written narrative.
Since Broly is a character from the Dragon Ball franchise, if there is a 'Broly Love Story', it might involve him finding love among the various races in the Dragon Ball universe. Maybe he meets a female Saiyan or someone from another planet and they form a connection through shared experiences, like fighting together against a common enemy. But again, this is all speculation as it's not a common part of the official story.
Bulma could be another character paired with the reborn Broly. She might be the one to help him understand the modern world if he is reborn in a different time period. She could use her intelligence to create devices that help Broly control his power better or she could just be there to provide some comic relief in the midst of all the intense Saiyan drama.
He could team up with Luffy. Luffy is always open to new allies, and Broly's power would be a great addition to the Straw Hat crew. They could go on adventures together and face powerful enemies.
Goku could be a likely ally. Despite their initial conflicts, Goku has a way of seeing the good in people. He might approach Broly and convince him that they can work together to win the Tournament of Power for their universe. Their combined strength would be a formidable force.