You can try fanfiction websites like Archive of Our Own (AO3) or FanFiction.net. There are likely to be many fan-written stories about Optimus Prime and Mikaela's relationship on these platforms.
The contrast between them is appealing. Optimus Prime is a powerful, noble alien robot, while Mikaela is a human with her own strengths and vulnerabilities. Their relationship in fanfiction can explore the idea of cross - species love, which is quite interesting.
One possible fanfiction could be about Sentinel Prime and Optimus Prime having to work together to save Cybertron from a new, powerful enemy. They might start off with some differences in their approaches but gradually learn to combine their strengths.
A possible love interest could be another Autobot. Maybe a female Autobot with whom he has fought side by side for a long time and gradually developed feelings for. Another option could be a human female who has shown great courage and understanding, and through their interactions, Optimus Prime finds himself attracted to her.
Optimus Prime could fit in as a powerful ally. He would be like a super - powered being in the RWBY world. His presence could shake up the power balance. Maybe he arrives through a portal and immediately starts helping the RWBY teams fight the Grimm. He could be seen as a symbol of hope, much like the Huntsmen and Huntresses are in RWBY.
One common theme could be the struggle between his duties as a leader and his new - found love. For example, he might have to choose between protecting his team and being with the one he loves. Another theme could be the acceptance of his love by his comrades. Since he is in a position of great responsibility, they might be initially skeptical. Also, the idea of an inter - species love could be explored, considering Optimus Prime is a Cybertronian.
Once upon a time, Optimus Prime led the Autobots on a mission to a distant planet. The planet was filled with strange energy sources that could either be a great power boost or a deadly trap. Optimus, with his unwavering courage, decided to explore it first. As he ventured into the unknown, he faced many challenges and strange creatures. But he never wavered, for he knew the safety of his team and the future of their cause depended on his actions.
Bumblebee and Optimus Prime fanfiction also attracts fans because it can bring a sense of community. Fans can share their stories, discuss different interpretations, and collaborate on ideas. It's not just about the individual stories, but also about the collective love for these characters. Reading and writing fanfiction can create a bond among Transformers fans all over the world.
One great fanfiction could be about Optimus and Arcee going on a dangerous mission together. They face numerous challenges, like battling a powerful new Decepticon. Their teamwork and trust in each other are put to the test. Arcee's speed and agility combined with Optimus' strength make them a formidable duo. Along the way, they might have some deep conversations about the future of their race and their place in the war.
Fanfiction about Baby Optimus Prime might also explore his emotional side. As a baby, he would be more vulnerable and have a wider range of emotions. He could get scared during battles, but also be extremely curious about the world around him. Writers could delve into how the other Autobots help him deal with these emotions, like Ratchet being like a father figure, comforting him when he's afraid and guiding him as he grows.