Themes like friendship and rivalry are quite common. In 'naruto x cote fanfiction', Naruto might form new friendships with the COTE characters, or he could become rivals with some of them due to their different goals and personalities. Also, the theme of self - improvement is there. Naruto's journey in the COTE world could be about learning new things and growing as a character in a different context.
Power dynamics is a common theme. Given that Guy is extremely powerful and Rimuru is rapidly growing in power, how they interact in terms of who has more influence is often explored.
Their relationship could start as a cautious alliance. Rimuru, being a slime who has built his own community, would be wary of Luminous at first. But as they face challenges together, they start to respect and trust each other more.
Among the main characters besides Rimuru are Gobta. He is a goblin who is rather comical at times but also shows growth throughout the story. Then there is Diablo, a very powerful demon who becomes Rimuru's subordinate. His power and knowledge contribute to Rimuru's rise in the world of the novel. There are also other characters like Milim, a dragonoid with a child - like personality who has her own impact on the overall plot.
There are many 'naruto x cote fanfiction' out there. Some might focus on Naruto being a transfer student in the COTE world. He could bring his ninja ethics and combat skills to that world. This often leads to some really cool scenarios where he either outsmarts the COTE characters or learns from them in unexpected ways.
I've heard of 'Guy and Rimuru: A Different Path'. In this fanfic, it takes an alternate universe approach. Guy Crimson and Rimuru meet under very different circumstances than in the original story. Their relationship starts off rocky but then they discover they have more in common than they thought, leading to a heartwarming friendship.
One interesting fanfic could be about their first encounter from a different perspective. Maybe it focuses on Guy Crimson's initial thoughts about Rimuru which were a mix of curiosity and wariness. In this fanfic, their relationship could develop as they face a common enemy together, gradually growing to respect and trust each other.
One popular Rimuru x Guy fanfiction is 'The Unlikely Bond'. It explores their unique relationship in a new world setting, with Rimuru's naivete and Guy's powerful presence creating interesting dynamics.