The novel might focus on the adventures and experiences of Fitzwilliam Darcy as a gentleman, perhaps involving romance, social interactions, and personal growth.
The theme of family also often plays a big part. How the Bennets' situation affects Elizabeth and how Darcy's family expectations influence him are explored. And how they overcome these family - related obstacles together is a key aspect in many fanfictions about them.
One great piece of Fitzwilliam Darcy and Elizabeth Bennet fanfiction is 'An Arranged Marriage' which delves deeper into their relationship. It shows how they navigate through the initial misunderstandings and grow to love each other in a different scenario than the original story.
I would say 'The Scoundrel's Redemption' is among the top. The story follows the journey of a scoundrel as he tries to find redemption. Darcy Burke does an amazing job of developing the character throughout the story, and the relationships he forms with other characters, especially the female lead, are complex and captivating. There are many twists and turns in the plot that keep you hooked from start to finish.
In the comics, Darcy remains without powers. The story focuses more on her character development and involvement in other aspects rather than giving her any special abilities.