I've sunk a lot of time into the 'Kanojo, Okarishimasu' tag, and honestly? The best ones often aren't the straightforward 'they get together' romances. There's this one author who writes Chizuru as a film student working on a documentary about modern relationships, with Kazuya as an unwitting subject. It's framed as her thesis project, and the whole story is her interview transcripts and production notes. You see her professional admiration for his earnestness warring with her personal feelings, and Kazuya slowly realizing he's not just a 'client' to her anymore.
It's got that slow, methodical peeling-back of layers that the canon sometimes brushes past. The writing feels less like wish-fulfillment and more like a character study. It uses the documentary format brilliantly for internal monologue, which is a huge part of their dynamic. I sometimes re-read it just for the structure; it's clever without being showy.