There is a lot to be said about "The Promised Neverland". It subverts traditional shonen expectations in favor of experimental horror and suspense. It's a wonderful breath of fresh air, and a welcome addition to the Shonen Jump lineup.
It does a wonderful job of building itself up and progressing its plotline while simultaneously developing the cast of characters into memorable and lovable pieces of work.
Specifically the main three characters. Those three make up one of the strongest shonen trios in history.
Give it a go if you're looking for something that changes up the modern mainstream formula of shonen anime, or if you're a fan of horror/thrillers.