Harry Potter himself would be really interesting. Imagine him using his Gryffindor courage to pilot a super robot into battle. Hermione would also be cool, using her vast knowledge of magic to upgrade and strategize for the robot battles.
I think pairing Kanan Jarrus and Dumbledore would be really interesting. Dumbledore is this wise and powerful wizard, and Kanan is a Jedi with his own set of skills and knowledge. They could have deep discussions about leadership, the nature of good and evil, and how to train the younger generation. Kanan could learn from Dumbledore's teaching methods when it comes to mentoring Ezra, and Dumbledore could gain insights into the Force from Kanan.
Snape and Kylo Ren could be an unexpected but interesting crossover. Snape's complex character, his past mistakes and his hidden loyalties could be compared to Kylo Ren's inner turmoil. Snape might see some of his own struggles in Kylo Ren and try to either redeem him or use him for his own purposes. And Hagrid and Chewbacca would be a fun crossover. They are both big, lovable characters with a heart of gold, and seeing them interact would bring some light - hearted moments to the story.
Well, perhaps it could be about Harry Potter using his magic to control super robots in a battle against Voldemort's forces. The robots could be enchanted with spells and used in a war within Hogwarts.
I think Dumbledore would be really interesting in this fanfiction. He would be the one guiding Harry in understanding and controlling his Saiyan powers. He might have some knowledge about the Saiyans already, or he would be very intrigued by this new development. Also, Ron could be interesting as he would be both in awe and a bit jealous of Harry's new powers, and their friendship would have new challenges and developments.
Darth Vader and Voldemort would make an extremely interesting combination. Their dark powers and thirst for domination are quite similar. The way they would interact, whether they'd form an alliance or be at odds, could create a very engaging storyline.
Harry Potter himself would be in the thick of it. He's always in the middle of action at Hogwarts, and a food war is no exception. He might use his skills as a Seeker to quickly gather ingredients or dodge food attacks. Neville Longbottom could be there too. He has a deep knowledge of plants, which could be useful when it comes to identifying edible and useful ingredients in the Hogwarts gardens. Plus, his growth in confidence would make him a valuable team member in the food war.
In Star Wars, Darth Vader is a very interesting character to write about in fanfiction. His complex backstory and the internal struggle between the light and dark side of the Force offer a lot of material. For Harry Potter, Severus Snape is fascinating. His double - agent role and his unrequited love for Lily Potter give writers a lot to explore.
Tony Stark could also be very interesting. Imagine him in the Harry Potter world, his super genius mind trying to figure out how magic works. He might try to reverse - engineer spells or create technological equivalents. His sarcastic and confident personality would bring a different dynamic to the magical world, and he could potentially use his Iron Man suit in combination with magic to create some really cool and powerful effects.
The Joker could be an unexpected but exciting addition to this crossover. Imagine the chaos he could cause in the wizarding world. His madness and unpredictability would be a huge challenge for the wizards and witches. And Batman would have to find a way to stop him in a world full of magic, which he is not used to. Also, Snape's complex personality could add more depth to the story when interacting with Batman.
Leonidas from '300' would be a great character to focus on. Imagine his reaction to the magic of the Harry Potter world. He's a fearless leader, and seeing him interact with wizards and magical creatures would be fascinating. He might see the magic as a new weapon or a strange form of sorcery that he has to either embrace or fight against.