You can try looking on fanfiction websites like Archive of Our Own (AO3) or FanFiction.net. These platforms usually have a large collection of Transformers fanfictions, including those featuring TFA Ultra Magnus and Optimus Prime.
Some fanfictions also explore the idea of self - discovery. Optimus Prime is still growing and learning about his role. Ultra Magnus, with his experience, can play a role in this journey. It could be about Optimus Prime realizing his true potential with Ultra Magnus' guidance, or both of them learning new things about themselves through their interactions.
Ultra Magnus is often portrayed as a strict and disciplined Autobot. He adheres to the rules and expects others to do the same. However, in some fanfictions, he also has a softer side that he shows to the reader. He might be protective of the reader, using his strength and strategic mind to keep them out of harm's way.
In Transformers fanfiction, Ultra Magnus and Wheeljack can have various interactions. They might be comrades in a battle against the Decepticons. Ultra Magnus, with his strict sense of duty, could initially be at odds with the more maverick Wheeljack, but over time, they could learn to respect each other's skills and approaches.
They could have a strong bond based on mutual admiration. Ultra Magnus might admire Wheeljack's creativity, while Wheeljack could look up to Ultra Magnus' leadership. In fanfiction, this bond could be tested during a crisis, like when the Autobot base is under attack.
There are also fanfictions that focus on adventure themes. They might go on missions together, and the story will revolve around how they work as a team during these adventures. Their different personalities can create interesting dynamics during these action - packed scenarios. For example, Rodimus' boldness might contrast with Ultra Magnus' more cautious approach, leading to both conflict and growth in their relationship as they face various challenges.
One good story could be 'The Bond of Rodimus and Ultra Magnus'. It focuses on their teamwork during a difficult battle against a powerful enemy. The story shows how their different personalities complement each other.
You can start by looking on popular fanfiction websites like Archive of Our Own. There are likely to be a good number of stories featuring Rodimus and Ultra Magnus there.
One common plotline could be them working together on a difficult mission. They have different personalities - Ultra Magnus is more by - the - book while Wheeljack is more of a maverick. So, their clashes and how they overcome them during the mission can make for an interesting story.
Another option is to check out specific Transformers fan communities or forums. Sometimes, fans share their own fanfictions or know where to find good ones. For example, the TFW2005 forums might be a good place to look. There, fellow fans can point you in the right direction regarding Ultra Magnus x Wheeljack fanfiction.