Responses
https://www.mangago.me/home/mangalist/2969058/
Those are my favorite, i give each a grade, just the theme and dynamic of the story to see what you like and they are in order of preference :)
You have many between 30 to 100 chapters, all PEAK

completed manhwa with around 30 to 100 plus chapters, completed and not boring to read, any genre is fine as long as there's no harem scenario