The bond between Charizard and its trainer is a classic and great aspect to explore. Think about how they train together, communicate without words in the heat of battle, and how their relationship grows over time. Additionally, Charizard's role in the Pokemon world as a symbol of power and strength can be written about, such as how it is respected or feared by other trainers and Pokemon alike.
One good aspect is their friendship. Ash and Charizard have a deep bond that has evolved over time. Their story of how they first met, when Charizard was a stubborn Charmander, and how Ash never gave up on it can be explored in great detail.
One characteristic is that they often focus on the friendship and loyalty between Ash and Charizard. For instance, stories might show how Ash trusts Charizard completely during battles, and Charizard is always ready to protect Ash. Another aspect could be their growth journey. Maybe Charizard is learning new moves, and Ash is helping it improve by training in different environments.
One characteristic is that they focus on the relationship between Ash and Charizard. It could be about their loyalty to each other. For instance, in many fanfictions, Charizard will always come to Ash's aid in tough battles. Another characteristic is the exploration of their growth. Ash grows as a trainer, and Charizard grows in strength and maturity. These fanfictions often show how they influence each other's development.
One good aspect could be their cultural differences. Aang being an Air Nomad and Sokka being a Water Tribe member, they have different ways of life and beliefs. Exploring how they learn from each other's cultures can make for an interesting story.
A common theme is also the concept of mutual growth. The human might teach the Charizard about human values and technology, while the Charizard could teach the human about the power of nature and instinct. There can also be themes of sacrifice, where either the human or the Charizard is willing to put themselves in danger for the other.
One good aspect is their different abilities. Hashirama's powerful Wood Style jutsu and Sakura's medical ninjutsu and strength could be combined in interesting ways in the story. For example, they could team up to heal a large area of forest damaged by some dark force.
In non - lemon fanfiction, their friendship is a great aspect. Tidus and Rikku often have a dynamic where they tease and support each other. For example, Rikku's spunkiness can bring out the more adventurous side of Tidus.
The relationship between Zabuza and Haku as mentor and student is also a great area to explore. How Zabuza taught Haku his skills, and how Haku learned not only the physical skills but also the mental and emotional aspects of being an assassin can be the focus of a fanfiction. It could also show how their relationship evolved from a strict teacher - student one to a more equal and deep - rooted bond.
One good aspect is their mentorship relationship. Matsumoto could be seen as a guiding figure for Hitsugaya in the complex world of their organization. Another aspect is their loyalty to each other. They always have each other's backs in dangerous situations. Also, exploring their pasts and how they came to be such close comrades can make for an interesting fanfiction.
Character development is a great aspect. You can see how the writers expand on Kagome's and Youko Kurama's personalities, their growth throughout the story. Another aspect is the plot. A well - crafted plot that involves their unique abilities and how they interact with the story's world can be really engaging.