Yes, there might be such fanfictions out there. The Voltron fandom has a wide variety of creative works, and this kind of alternate family relationship concept could be explored in fanfictions. However, you may need to search through specific fanfiction platforms like Archive of Our Own (AO3) to find them.
One possible plotline could be Keith growing up not knowing Lotor is his dad. Then, through some series of events in the story, like a battle or a discovery in an ancient ruin, he finds out the truth. This could lead to a lot of internal conflict as he has to come to terms with who his father is, considering Lotor's actions in the original series.
Character exploration is a key element. Since Lance and Lotor are quite different characters, fanfiction often delves into how they would interact and understand each other. For example, Lance's more carefree nature compared to Lotor's more complex and often mysterious personality.
One popular lance x lotor fanfiction is 'The Unlikely Bond'. It delves into how their different personalities start to interact in unexpected ways. It has great character development and some really interesting plot twists.
There are many places to find Shiro and Keith yaoi fanfiction. Fanfiction.net and Archive of Our Own (AO3) are two popular platforms. On these sites, you can search for tags related to Shiro, Keith, and yaoi to narrow down your results. Just be aware that the quality of the fanfictions can vary widely.
One common theme is the exploration of their cultural differences. Since they come from different backgrounds, how they understand and accept each other's cultures can be a big part of the story.
In Shiro and Keith yaoi fanfiction, the power dynamics between them can be an interesting element. Shiro being the more experienced and Keith the more hot - headed. This can lead to some intense and passionate moments in the story. The fanfiction could also explore how their relationship affects the team dynamic, whether it's met with acceptance or some initial resistance from their comrades.
I think Keith's closest friends within the blades are most affected. If he's younger, they might become more overprotective. If he's older, they could start relying on him more for advice. For instance, if there's a character named Lance who was previously on equal footing with Keith, now he might see Keith in a different light depending on his age.
Well, it could change the relationships in the story. Maybe the other characters start treating Keith differently, either more protectively if he's younger or with more respect if he's older. It might also affect the group dynamics within the blades.
There are some fanfiction platforms where you might come across acxa and keith fanfiction. FanFiction.net could also be a source. However, the quantity might be less compared to AO3. Sometimes, you might find some really creative stories that explore their relationship in different ways, like in a post - war scenario where they have to work together to rebuild.