Fullmetal Alchemist is another one. The anime adaptation is widely praised for its faithfulness to the manga and its high-quality production values.
I think One Piece has a really successful anime adaptation. It has a huge fan base and stays quite true to the manga.
For me, Naruto is up there. The anime adaptation managed to bring the manga's world and characters to life vividly. There were some filler episodes, but the core story was presented well.
Chapter 521, "Stick to One Line of Work", is the clearest early answer because it turns Wilderness Survival's situation into a concrete plot event.
Chapter 158, "It's Time to Recruit Someone Who Understands Mysticism to Work Here", is the clearest early answer because it turns Sister Xueyi's situation into a concrete plot event. Early on, Reluctantly, Jiang Yan had no choice but to forcibly join the group....
Chapter 217, "No Problem, They're All Red Anyway", is the clearest early answer because it turns Wen Jiaojiao's situation into a concrete plot event. Early on, But Director Sun didn't plan to give her any room to think, he....
Chapter 355, "She is My Only Sister", is the clearest early answer because it turns Dusang Banquet's situation into a concrete plot event. The chapter gives readers a real answer by opening on Luo must have checked lots of news about me these past few days, so...
Chapter 158, "It's Time to Recruit Someone Who Understands Mysticism to Work Here", is the clearest early answer because it turns Su Yinwan's situation into a concrete plot event.
Chapter 604, "Shiguang, originally named Shen Guang", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. The setup is Fortunately, the other person did not recognize him;
Chapter 315, "It seems a bit difficult to get a perfect score", is the clearest early answer because it turns Lin Manru's situation into a concrete plot event. The chapter turns that into something concrete by moving from Jiang Li, however, looked at the delicate draft and said, "Mom, why...
Chapter 403, "Neither Jiang Lijiang nor Jiang Yan Came?", is the clearest early answer because it turns Chang's situation into a concrete plot event. It opens with Now our helicopter has arrived above the harbor in Yan City, and...
Chapter 433, "The Young Master Has His Own Ideas", is the clearest early answer because it turns Jiang Shixu's situation into a concrete plot event. The chapter gives readers a real answer by opening on Since Jiang Yan and his group left, the house had become much colder.
Chapter 583, "Making a Fool of those Big Shots!", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. The chapter gives readers a real answer by opening on Days before, Jiang Li had predicted that today would bring a great...