Naruto is one that does a great job. The anime closely adheres to the manga plot with just a few fillers that don't disrupt the main story.
My Hero Academia is a good example. It mostly follows the manga precisely, although there might be some minor tweaks for better visual presentation or to fit the animation schedule, but they don't deviate much from the original.
One Piece is renowned for its close adaptation. It captures the essence and major events of the manga very well. There are some small additions and changes, but they are in line with the spirit of the source material and keep the story engaging for viewers.
A practical answer is Chapter 10, because it turns the idea into a concrete scene. The chapter opens with Qiao's shocked face struggle to recover, Lin Manru also tasted for the..., adds pressure through The young man stood motionless, his gaze fixed on the girl below, and..., and ends on Who was.
The best chapter pointer here is Chapter 10, "All for Wiping Your Butt". It opens with Qiao's shocked face struggle to recover, Lin Manru also tasted for the... and closes on Who was it again saying that the Jiang Family's tradition was lacking,....
Chapter 783, "I'll Fight it Out with You Rich People!", is the clearest early answer because the buildup finally cashes out in a real clash. A useful checkpoint is the way the scene starts with As soon as Qingyang finished speaking, everyone's mentality in the...
Look to Chapter 4 for the clearest answer. It begins with Qiao regretted her words as soon as they left her mouth., keeps building through Whether Jiang Yan can be found or not was another matter., and lands on A little girl acting mysterious, learning fortune-telling, what is this....
The best chapter pointer here is Chapter 13, "Killing the Chicken to Scare the Monkey". It opens with Sensing that something was off with Jiang Yan, Jiang Yan dismissed the... and closes on How could this happen..." Lin Manru didn't want to hear any more of her....
Chapter 785, "Signing with Taiqi", is the clearest early answer because it turns Jiang Shixu's situation into a concrete plot event.
Chapter 880, "Your sister has been taken to the station!", is the clearest early answer because it turns Miss Su's situation into a concrete plot event.
Look to Chapter 22 for the clearest answer. It begins with Hearing this, Su Yinwan looked at Shang Shaojing with a face full of..., keeps building through Shang, but it's not necessary;
A practical answer is Chapter 5, because it turns the idea into a concrete scene. The chapter opens with Actually, when Manager Fang saw Jiang Li, he was somewhat surprised., adds pressure through How the hell did you get in?!, and ends on Recently, he did suspect that his wife was cheating on.
Chapter 803, "Younger Brother Misses Mom", is the clearest early answer because it turns Jiang Mingchuan's situation into a concrete plot event.