The settings can be combined too. You could create a new world where the Naruto universe and the remnants of Krypton co - exist. Maybe there's a city in this new world where ninjas and Kryptonians live side by side. Naruto could then explore this new place, learn about Kryptonian technology, and use it to enhance his own ninja tools or techniques.
One way to combine the abilities is through training. If Naruto trained with a Kryptonian and a Saiyan, he could learn to use his chakra in new ways. Maybe he could infuse Kryptonian solar - powered energy into his chakra, and then use Saiyan - like combat styles. The Saiyan's agility and combat instincts could also be added to Naruto's already impressive ninja skills, creating a whole new set of abilities.
Naruto's ability to use chakra and perform jutsus could be combined with Tamarron's Kryptonian powers. For example, Tamarron could use her super strength to create a distraction while Naruto uses a clone jutsu to attack from multiple angles. Karin's ability to sense chakra could be used to detect hidden enemies or power sources. So, in a battle scene, Karin could alert Naruto and Tamarron to an approaching threat, and they could then use their combined powers to defeat it.
In fanfiction, you can also combine their storylines. Say, the plot of 'The Lion King' could be merged with Naruto's journey to become Hokage. Simba's struggle to take his rightful place as king can be paralleled with Naruto's efforts to gain the respect of the Hidden Leaf Village and become its leader. There could be a common enemy that both Naruto and Simba have to face together, something that threatens both the pride lands and the ninja village.
One way is to have the characters from Naruto join a peerage structure similar to that in Bleach. For example, the Hokage could be like the king of the peerage. Then, the jutsu of Naruto characters can be compared or integrated with the powers in Bleach. So, a Rasengan could be equivalent to a certain level of reiatsu - based attack.
Naruto could use his chakra control to enhance his Kryptonian super speed. For instance, he could focus chakra on his legs while using his Kryptonian speed to move even faster and more stealthily. Also, his shadow clone jutsu could be combined with his Kryptonian powers. He could send clones with super strength or heat vision to attack enemies from different directions.
Another way is to have Naruto fuse his chakra with someone who has the ability to use Susanoo, like Sasuke. They could create a combined form that has the best of both their powers. The story could detail their journey of learning to work together and master this new form.
A simple way is to make Naruto encounter an orange - themed Pokemon event. For example, a festival in the Pokemon world that features orange - colored Pokemon like Flareon. Naruto gets involved in the festivities and through that, he meets new friends and gets into some light - hearted adventures.
A smart Kryptonian in a Naruto fanfiction might start by being an outcast. Just like Superman was an alien on Earth, this Kryptonian would be different in the Naruto world. They could use their super - intelligence to analyze and understand the ninja clans. For example, they might figure out a way to combine Kryptonian strength with Sharingan abilities if they come across the Uchiha clan.
Well, one way is to make Ben Drowned a part of the Hogwarts mystery. Maybe he's linked to a secret chamber that has been long forgotten. The 'Harry Potter' characters then have to figure out how he's related to it while also dealing with his otherworldly nature. His presence can add a new layer of danger and mystery to the Hogwarts environment. Also, his powers could be a contrast to the magic that the students are used to. For instance, if the students use wands for magic, Ben Drowned might have magic that comes from within him in a more instinctive way. This can lead to interesting interactions and power struggles within the fanfiction.
If Karin had Kryptonian abilities, her confidence would likely soar. She could become more assertive in her actions. For instance, with super strength, she would no longer be as afraid in combat situations. Her character might also become more isolated at first as she tries to figure out her new powers on her own, not wanting to endanger her friends. But as she masters them, she would be more open to sharing and using them for the good of the group.