answer:I have never seen or read Death Note, but I have watched some anime and read and written my share of fanfiction. Setting changes (different fictional universes, or insertion into real-life events), character role swaps, [Characters] perform Shakespeare, Deconstruction fic, slice-of-life vignettes. Self-insert if you’re feeling cheesy. You could roll all of your preferred genres into one colossal superfic, since none of your genres conflict with any of the rest of your genres. Heck, Angst and Drama are neighbors, live amongst family and between friends and can drive both to horrific acts, and work perfectly well on a spaceship. I was always impressed with author-grade continuation/AU fanfiction, though that’s a rare flavor. My advice is to branch out. There’s plenty of good anime out there. Plenty of bad anime too, but plenty of good stuff. No sense in pigeonholing yourself.