One great Blurr and Shockwave fanfiction could be a story where Blurr's speed is pitted against Shockwave's strategic mind. Maybe in a race to retrieve a powerful Cybertronian artifact. Blurr uses his speed to quickly cover ground, but Shockwave has set up various traps and decoys along the way. Their interactions could be filled with tense moments and exchanges of taunts as they both try to outwit the other.
Yes, there are some out there. You can try searching on popular fanfiction websites like Archive of Our Own. Just use the relevant tags 'Transformers', 'Predaking', 'Shockwave' and 'yaoi' to narrow down your search.
Character development is key. See how Shockwave's character changes or stays the same in the new crossover setting. For example, if he crosses over with a more emotional - based universe, does he start to show any emotions? Another element is the plot. A good plot should blend the two universes well, like if it's a Transformers and Star Wars crossover, the way the two different technologies and species interact.
A possible plot could be that Blurr is sent on a mission to stop Shockwave from activating a dangerous weapon. Blurr races to the location, but Shockwave has anticipated his arrival. They engage in a battle of wits and strength, with Blurr using his speed to dodge Shockwave's attacks and Shockwave using his advanced weaponry to keep Blurr at bay.
It could start with mutual curiosity. Predaking might be intrigued by Shockwave's scientific knowledge and Shockwave by Predaking's raw power. They begin to exchange information, with Shockwave teaching Predaking about advanced technology and Predaking sharing his combat experiences.
In these types of fanfiction, a common theme might be the adaptation to unexpected situations. The concept of mechpreg in the world of Transformers is quite out of the ordinary. So, the characters, especially those in a Yaoi relationship with Shockwave, might have to adapt to this new state. There could also be themes of love and loyalty, as they face challenges together, whether it's from other Transformers or just the difficulties that come with their unique situation.
There's a fanfiction where Shockwave crosses over with a cyberpunk - themed world. In this story, Shockwave's logical and calculating nature stands out even more against the chaotic backdrop of the cyberpunk world. The author does a great job of showing how Shockwave adapts and tries to take control of the new environment.
First, study the characters of Predaking and Shockwave. Know their personalities, motives, and backstories from the Transformers series. Then, start with an interesting plot idea that could bring them together in a romantic context. For example, a shared mission that makes them rely on each other.