As far as straight romance manga goes, there was unfortunately plenty of light novel-based wish-fulfillment fodder like this one.
THE ANGEL NEXT DOOR SPOILS ME ROTTEN (Otonari no Tenshi-sama ni Itsu no Ma ni ka Dame Ningen ni Sareteita Ken), based on the light novels by Saekisan and illustrations by Hanekoto, with art by Wan Shibata and storyboards by Suzu Yuki. First published in 2022 and first published in North America in 2024.
PLOT:
Amane is your average Japanese high school kid, the kind who lives in a messy apartment, subsists entirely off of take-out, and generally goes through life unnoticed. He certainly could never compare to the likes of Miharu, the "angel" of their class and his next-door neighbor. That's why he's so surprised to see her sitting alone in a rainy playground without so much as an umbrella. What begins as a simple kind gesture to her leads to Miharu taking it upon herself to regularly feed him and clean his place. Is this the beginning of a romance or merely a relationship of convenience?