Another theme is growth. It could be about Bumblebee growing in terms of his skills or confidence with the help of Wheeljack, or vice versa. They both evolve as characters in the fanfiction.
One great story could be 'The Adventure of Wheeljack and Bumblebee' where they go on a mission together to save their planet. It shows their friendship and how they rely on each other's strengths.
You can start by looking on fanfiction.net. It has a large collection of Transformers fanfictions, and there are likely quite a few focused on Wheeljack and Bumblebee. Just use the search function to find them.
There's also 'The Unlikely Duo'. In this fanfiction, Wheeljack takes Bumblebee under his wing as a sort of mentor. It shows their interactions as Wheeljack teaches Bumblebee some advanced combat techniques. It's really interesting to see how Bumblebee grows under Wheeljack's guidance.
Friendship is a common theme. Their unique personalities often lead to an interesting friendship dynamic, like Wheeljack's adventurous nature contrasting with Ratchet's more cautious and practical side.
Often, the theme of mutual understanding despite their differences is seen. Since they are different characters, the fanfiction might focus on how they learn to accept and love each other. Also, themes of adventure and working together on missions can be incorporated into their relationship storylines in the fanfiction.
Love or a deep emotional bond is also a common theme, although it can be presented in different ways. Sometimes it's a platonic love based on mutual admiration and trust. Other times it might be more of a romantic undertone, where their relationship is explored in a more affectionate and intimate way. Fanfiction writers often play with these different levels of emotional connection between the two characters.
Bumblebee is often depicted as brave and eager. He's always ready to jump into action, despite his small size compared to some of the other Autobots. His loyalty to his friends is unwavering.
One popular theme is friendship. In many fanfictions, Optimus Prime and Bumblebee's bond extends to their interactions with humans. They protect humans not just as a duty but as friends. Another theme is adventure. The Autobots, including Optimus and Bumblebee, often embark on exciting adventures with humans, exploring new places and facing new enemies. Also, the theme of self - discovery is common. Humans in these fanfictions might discover new strengths or abilities while interacting with the Transformers, and the Transformers themselves may also learn more about humanity and their own place in the universe.
In TFP, both Ratchet and Wheeljack have their own fan followings. Combining them in a fanfiction gives fans a chance to see their favorite characters in a new light. Their different skillsets also play a role. Ratchet's medical knowledge and Wheeljack's engineering and combat skills can create exciting storylines, whether they're on a rescue mission or just trying to survive in a tough situation. Plus, the idea of a relationship between them adds an element of romance and emotional depth that many fans enjoy.
One common theme is friendship. They are comrades in the Transformers series, so fanfictions often explore their deepening friendship, like how they support each other during battles and tough times on Earth.