Another strong opponent could be Hit. Hit has the ability to manipulate time with his time - skip technique. This would give him an edge against Broly. Broly's brute strength might not be enough when Hit can literally disappear and reappear at will, striking at Broly's weak points during his time - skips.
Issei could be one of Broly's potential friends. Issei is known for his friendly and outgoing nature. He might be intrigued by Broly's power and want to befriend him. Also, Asia could be a friend. She has a kind heart and might reach out to Broly, who could be seen as an outcast due to his strength and different background. Her kindness could break through to Broly.
Perhaps in the fanfiction, Tony Prito's father's death could lead to Tony having to take on more responsibilities in the family business or within the family structure. This could cause him to struggle as he tries to fill his father's shoes, both literally and metaphorically. He could face challenges from other family members who don't think he's up to the task.
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.
Since Broly has a rather wild and untamed personality, Naruto could learn to be more in touch with his primal instincts. This doesn't mean Naruto would become a brute, but rather he could find a new balance between his kind - hearted nature and a more aggressive side when necessary. For example, in negotiations or battles, Naruto could be more intimidating. Also, Broly's loyalty to his own beliefs (even if they are sometimes extreme) could inspire Naruto to be more firm in his own ninja way.
He may develop into a more responsible and mature character. With his father gone, he has no choice but to step up. This could mean making tough decisions for the family or in his personal life. He might also become more determined, using his father's memory as a source of motivation to succeed in whatever he does.
Broly's fighting style is wild and unpredictable. In the Tournament of Power, this could be a game - changer. His erratic movements and powerful attacks would force opponents to adapt quickly. However, it also means he might overextend himself. For example, he could leave himself open to counterattacks while going all - out on an offensive. His fighting style might also inspire fear in some opponents, which could affect their performance in the fight.