One popular Dark Gohan fanfiction might be those that explore his power in a new and extreme way. For example, stories where he battles against even stronger foes than in the original series. In some fanfictions, he might team up with unexpected characters while still maintaining his dark and powerful aura.
Another aspect of his development in fanfiction is his relationship with his family. In some stories, he might reconcile with his father, Goku, or his mother, Chi - Chi. This can be a major turning point in his character arc, as it can bring out the more human and emotional side of Dark Gohan that was perhaps overshadowed by his darkness before.
I'm not sure exactly as I haven't read it. But it might be about a 'dark angel' and what happens in a post - dark world. It could involve themes like good and evil, survival, or redemption.
I'm sorry, I'm not aware of the author of this novel. There are so many novels out there that it's difficult to know every single one. You could search for it on literary websites or ask in book - related forums.
Well, one possibility is that Gohan might go into a period of self - discovery. After such a huge battle, he's likely to question his role in the world. Maybe he'll travel to find other powerful fighters and train with them. Another thing could be that he'll try to live a normal life for a while, like going back to school, but find it difficult because of his new - found power and the memories of the Cell Games.
The relationship could develop out of a need for companionship. Gohan, having lost many of his friends and family in battles, is in need of someone who can understand his pain. 18, being an android with her own complex past, also longs for someone to be close to. They meet and initially just offer each other a listening ear. As they talk more, they find that they can comfort each other in ways no one else can. This emotional connection then grows into a romantic relationship, and finally, they marry as they realize they don't want to be without each other.