Even if you don’t like volleyball, Haikyu!! will make you care. It focuses on Shoyo Hinata and his team at Karasuno High. The focus on teamwork and the lack of a true "villain" makes it incredibly uplifting.

The manga by Koyoharu Gotouge offers a fast-paced, emotionally resonant story with clear stakes. The anime adaptation by studio Ufotable features industry-defining animation quality, fluid combat choreography, and breathtaking visual effects. Jujutsu Kaisen

Thorfinn, a young Viking warrior, seeks revenge against his father's killer while navigating a brutal historical war.

These are the foundational series that defined modern shonen. If you haven't seen these, they are essential for any fan.

The Ultimate Otaku Guide: Popular Anime Series and Manga Recommendations