In some fanfictions, a new character could be introduced to save Harry. This character might have some special abilities or a hidden connection to Harry. For example, a mysterious wizard who has been watching Harry from afar and decides to step in when he sees Harry in danger. It could also be a magical creature that Harry has befriended, like a hippogriff that swoops in to catch him.
Dumbledore could also be a savior. Given his powerful magic, he could easily appear at the scene and use a spell to stop Harry from hitting the ground too hard. Or perhaps one of the teachers at Hogwarts, like Professor McGonagall, who is strict but caring, would use her transfiguration skills to create something to break his fall.
He could get seriously injured. In some fanfictions, he might break a bone or two. It would also likely lead to him being out of the Quidditch match if it happened during one.
Sasuke could save him. Despite their differences, Sasuke might still have that underlying bond with Naruto and show up just in time to catch him or pull him to safety.
In certain fanfictions, Harry's fall could be a part of a larger conspiracy. Maybe someone tampered with his broom on purpose. This would then lead to an investigation, with Harry and his friends trying to figure out who was behind it. Along the way, they could uncover other secrets about Hogwarts or the wizarding world in general, which would add more depth and complexity to the plot.
In some fanfictions, his fall off the broom could be a turning point in the story. It might lead to him discovering a new magical ability. For instance, he could unconsciously use a form of magic to slow his fall or even levitate himself slightly. This newfound ability could then be explored further in the story, perhaps making him a more powerful wizard in unexpected ways.
A plot twist could be that when Draco falls off his broom, instead of Hermione helping him directly, she uses a spell to make his broom catch him at the last moment. This shows her intelligence and also makes Draco question her motives. Later, he discovers that she didn't want to expose their growing friendship to others. Another twist could be that Draco's fall was actually a planned thing by someone who wanted to harm him, and Hermione has to figure out who it was while taking care of Draco. This adds a mystery element to the story.
Sasuke could be the one to save Naruto. Despite their past differences, Sasuke still has a connection to Naruto. He might sense Naruto's danger and rush to his aid, using his Sharingan to find a way to safely get Naruto back up from the bottom of the cliff.
His friends, Hermione and Ron, would surely help. Hermione with her intelligence and Ron with his loyalty.
His closest allies like Batman or Batgirl could be present. They might be the ones he trusts enough to show his face to.
He might meet American wizards who are very different from his British friends. Maybe some tough - talking Aurors who have their own way of dealing with dark magic.
He might target the elders first. They are often the ones who hold the traditional views and might be resistant to Naruto's new ideas. They could be the source of a lot of the problems Naruto is facing in the village.