There's also 'The Unseen Heroes' which is a fanfiction that explores the stories of the background characters in 'Fear the Walking Dead'. It's fascinating as it shows how these often - overlooked characters can have important roles in the overall apocalyptic world of the show.
Fear the walking Dead does have its roots in a comic. The comic provides the framework and inspiration for the TV show, with some creative adaptations made for the screen.
First, know the source material well. Understand the characters, their motives, and the world of 'Fear the Walking Dead'. For example, if you're writing about Morgan, you should be aware of his backstory and his journey in the show.