Happy watching, and as always—mind the filler arcs.
Fantasy / Philosophical Drama / Slice of Life The hook: The demon king is dead. The heroes have won. Now, an elf mage who lives for millennia must watch her human friends grow old and die. This is the story of what comes after the victory screen. Why it’s popular: It is a gentle, profound meditation on grief, memory, and the small moments that make life worth living. The action sequences are sparse but breathtakingly tactical. Where to start: Anime (by Madhouse). It is a masterclass in adaptation, using pacing, silence, and gorgeous backgrounds to create an atmosphere the manga can only suggest.
If you ask for popular anime series recommendations online, you will eventually hear about "Shonen." These are stories aimed at young men, but enjoyed by everyone, focusing on friendship, perseverance, and epic fights.