Shizue Izawa could also be a common crossover character. She has a connection to both the slime world and has some similarities to Naruto in terms of her own journey. She might help Naruto adapt to the slime world, or Naruto could potentially change some of the events in her story because of his different perspective and abilities.
Veldora is another favorite. His power and his somewhat comical yet powerful nature make him interesting in fanfiction. There could be stories where he takes on a more mentoring role to Rimuru or gets involved in unexpected adventures.
Shion is an interesting character. She's a strong ogre who is extremely loyal to Rimuru. Her clumsy yet endearing nature, especially when it comes to cooking, adds a touch of humor to the story. Then there's Benimaru. He's a very capable leader among the ogres. His respect and admiration for Rimuru, and his own skills in combat and strategy, make him a great addition to the cast.
Rimuru Tempest is an obvious choice as he is the main character in the original series. He has a lot of potential for further development in fanfics. Veldora is also popular. His powerful dragon form and his comical personality can add a lot of fun elements to the story. And Shizu, her backstory and connection to Rimuru make her a great character to include.
Rimuru is definitely the most memorable. He's the protagonist and his journey from being a human who got reincarnated as a slime to becoming a powerful leader is fascinating. His kind - hearted nature combined with his unique abilities make him stand out.
Often, original characters that are powerful yet have a mysterious backstory tend to be popular. For instance, a character who is a powerful mage but has a past linked to a long - lost magic artifact. They add an element of intrigue to the fanfiction.
Rimuru is a must - include character. As the main character in the original work, he can be the central figure in fanfiction too, with new adventures or relationships. Another popular one is Veldora. His powerful and somewhat comical personality can add a lot of fun elements to the fanfiction.
One of the most common characters paired with Naruto in these crossovers is Superman. The idea of the powerful Kryptonian and the strong - willed ninja working together is really appealing. Another is Goku from Dragon Ball. Both are known for their fighting spirit and constantly striving to become stronger. Additionally, Frodo from The Lord of the Rings has been paired with Naruto in some fanfictions, which is an unexpected but interesting combination as they both have a big mission to fulfill.
Well, there are several interesting characters. Rimuru, as the protagonist, is at the center of it all. His journey of self - discovery and his impact on the world around him are really captivating. Then there's Milim, a powerful and somewhat childish demon lord. Her interactions with Rimuru and her own quirks make her a very interesting character. Also, Geld, who has his own story of redemption and growth under Rimuru's influence, is quite an interesting character as well.
Rimuru is obviously one of the most interesting characters. His transformation from an ordinary human in his past life to a powerful slime in the new world is fascinating. He has a unique personality that combines kindness with a shrewd understanding of power dynamics. Veldora is also interesting. He's a powerful dragon who was sealed for a long time and his interactions with Rimuru are full of humor and unexpected twists.
Sasuke Uchiha also remains a popular character. His complex relationship with Naruto is a central part of the original series, and in fanfiction, it's often explored further. The reincarnated Naruto might have a different approach to dealing with Sasuke's issues and their rivalry.