None of these styles are too much like BTD, but imo they’re all beautiful in a stylistic sense!
https://www.mangago.me/read-manga/getting_to_know_grace/ (may not be everyone’s fav artstyle but I love it a lot!)
https://www.mangago.me/read-manga/i_love_amy/ (very cute and clean art)
https://www.mangago.me/read-manga/can_i_kiss_you/ (similar to btd?)
https://www.mangago.me/read-manga/dance_of_the_sugar_plum_fairy/ (also clean and quite cute art)
https://www.mangago.me/read-manga/run_away_with_me_girl/ (Manga not manhwa but the artstyle is so special and pretty and mwah)
Hope you found this helpful (⌒▽⌒)
Thank you so much!!!<3
I need your recommendation