One possible storyline could be that after years of war, an Autobot and a Decepticon realize the futility of their fight. They secretly meet and start to communicate. They find that they both have similar desires for their home planet, Cybertron. So they decide to work together to bring about peace, facing opposition from both their factions.
No, Harry Potter is not an Autobot fanfiction. Harry Potter is a distinct fantasy series centered around magic, wizards, and the wizarding world created by J.K. Rowling. It has no relation to the Autobots which are from the Transformers franchise.
😋According to your needs, I recommend the following two novels:
1. "My Transformers": The protagonist of this infinite novel, Pei Shao, accidentally obtained a "tinder" similar to the one in the movie "Transformers". His phone turned into a powerful and shapeshifting Transformers. Was it the autobots or the Decepticons? You can go and find out ~ The group number is 31873405.
2. "The Old Driver Who Can Transmigrate": The protagonist is an old driver who can transmigrate in his car. If you like sonic doujinshi novels, you can give it a try ~ The author is a little dragon.
I hope you like my recommendation. Muah ~
One interesting female Decepticon fanfic could be about a female Decepticon's journey to find her true place within the Decepticon ranks. It might explore her relationships with other Decepticons, both positive and negative.
There might also be other Autobots such as Bumblebee. Bumblebee could be Harry's friend, always there to help him out in tight situations. Maybe there's a human - Autobot liaison character who helps Harry understand the Autobots better. And let's not forget, there could be some antagonists from either the wizarding world or the Decepticons' side who play important roles in driving the story forward.
One idea could be a crossover with a modern military setting. The Decepticons could be trying to steal advanced military technology. Another is a crossover with a post - apocalyptic world where they are competing with other factions for resources. A third could be a crossover with a magical realm, with the Decepticons trying to harness the magic for their own evil purposes.
One common theme is redemption. Many fanfictions explore the idea of a Decepticon OC trying to break free from the evil ways of the Decepticon faction and find a new path. For example, an OC might realize the destruction they've caused and seek to make amends.
A common theme is the clash of two different worlds. The magical world of Harry Potter and the technological, war - based world of the Decepticons are so different that when they meet, there's bound to be conflict. Another theme is the idea of power. Both universes have their own forms of power, magic in Harry Potter and advanced weaponry in the Decepticons. Writers often explore how these powers interact and which is more dominant.
In a Transformers Prime fanfiction, a human could befriend a Decepticon who is disillusioned with the evil ways of their faction. Together, they try to find a way to bring peace between the Autobots and Decepticons. This would involve many challenges as both sides are distrustful of the other. The human's unique perspective might be the key to making it all work.