Sono Bisque Doll wa Koi wo Suru, Kaette Kudasai! Akutsu-san Recommendations
Similar-esque rom-com with outgoing (not so much a delinquent in Sono Bisque) gyaru and introverted-ish dark haired mc. However akutsu-san has a lot shorter chapters with a lot more focus on the romance and stuff, whereas there is a plot (kinda) for sono bisque that doesn't entirely focus on the relationship. Both are good and entertaining reads tho.