Atomic Blonde doesn't have its roots in a comic book. It stands on its own as a standalone cinematic creation with no prior comic book source material.
The book 'Legally Blonde' has elements of a true story. It draws from real - world situations, like the challenges a young woman might face in a male - dominated field such as law. Reese Witherspoon's character in the movie adaptation, which is based on the book, also goes through experiences that could potentially happen in real life. For example, the initial underestimation due to her appearance and then proving everyone wrong with her intelligence and determination.
Honestly, 'blonde fiction' is a rather unusual phrase. It could imply fiction works that focus on the experiences or adventures of blonde individuals, or it might just be a made-up term with no widely accepted meaning.
I think it could refer to fictional works that feature blonde characters in a prominent way or have something specific to do with the idea of blonde in a fictional context. But it's kind of a vague term.