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.
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.
If Broly was in the Tournament of Power, it would have a huge impact on the outcome. His power is extraordinary. He could change the strategies of all the teams. For example, Universe 11 might focus all their efforts on taking Broly out first. This would create openings for other Universe 7 fighters. Also, Broly's berserker - like fighting style could disrupt the order of the battles. He might accidentally destroy parts of the arena, affecting the fighting conditions for everyone. In the end, his presence would make the tournament much more unpredictable and exciting.
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.
In a crossover with One Piece, Luffy could be an ally. Luffy is known for his open - mindedness and ability to befriend almost anyone. He would see Broly's power and might try to get him to join his crew or at least fight alongside him against common enemies. They could have some really fun interactions, like Luffy trying to make Broly laugh or share his love for food with him.
A plot twist could also involve Broly being transported to a different dimension during the tournament. In this new dimension, he has to face off against versions of his enemies that are much stronger or have different abilities. He would then have to find a way to return to the Tournament of Power while also dealing with these new threats.
In a crossover with the Naruto universe, Naruto himself could be an ally. Naruto has a way of seeing the good in people, and he might try to reach out to Broly and convince him to use his power for good. His ability to befriend and understand others could be key.
One possible plot could be that Broly, still new to the ways of the other universes in the Tournament of Power, initially struggles to work with his team. He's so used to fighting alone. But as the tournament progresses, he starts to understand the importance of teamwork. He forms an unlikely alliance with a smaller, more strategic fighter. Together, they come up with unique battle plans that surprise their opponents.
DBS Broly is considered stronger. He has more advanced powers and abilities shown in the manga.
Harry and Ron would be her most likely allies. They are her best friends, and even if they might be initially shocked or jealous of her being in the tournament, they would surely come around to support her. Another likely ally could be Cedric Diggory. He's a fair - minded and kind wizard, and he might see Hermione's intelligence and skills as an asset and offer to help or at least be friendly towards her.
Generally, DBS Broly is considered stronger in fan manga. This is because he has more advanced techniques and powers. However, it's not a hard and fast rule. Different fan works might have different takes on their strength levels.