1. To Sir With Love - both ML's mothers are ambitious, do manipulation, intimidate people, and selfish to get their way (but both are nice to their sons and husband)
2. Sky Castle - extreme parenting environments, but at the same time they love their kids, ex : han seo jin spoils her kids but at the same time are obsesssed with status for her family
3. F4 and all its adaptations- ML's mother, pushing and pestering her goals without consideration of others, but actually just want the best for her son
bonus : red sleeve but not parents, grandfather
i don't know whether these are overbearing enough for the OP...