Before diving into modern hits, we have to acknowledge the foundation. For decades, three titans dominated the industry. While they are long-running, they remain the most popular entry points globally.
If you ask ten different anime fans for a recommendation, nine of them will point you to the "Shonen" genre. These are stories aimed at young men but loved by everyone for their themes of friendship, perseverance, and epic fights.
Why it’s popular: If you only watch one anime in your life, make it Death Note. Genius high school student Light Yagami finds a notebook that kills anyone whose name he writes in it. He decides to become the "God of the New World" by killing criminals, while the world’s greatest detective, L, tries to stop him. It is a 37-episode chess match of cat and mouse. Best for: Law & Order fans and anyone who thinks they are smarter than the main character.