Isekai Harem Monogatari Top Fix -

Sword Art Online: While not strictly a harem monogatari, SAO features a large cast of female characters, and Kirito's relationships with them are a significant part of the story.
Overlord: A dark fantasy isekai harem monogatari where the protagonist, Momonga, becomes a powerful overlord in a new world and gathers a harem of female followers.
KonoSuba: God's Blessing on This Wonderful World!: A comedic isekai harem monogatari that follows Kazuma, a teenager transported to a fantasy world, as he gathers a harem of eccentric female companions.
The Rising of the Shield Hero: A darker isekai harem monogatari that explores the story of Naofumi, a young man summoned to a fantasy world as one of four heroes, and his complicated relationships with the women around him.
In Another World with My Smartphone: A lighthearted isekai harem monogatari where the protagonist, Touya, is transported to a fantasy world with his smartphone and uses it to become a powerful adventurer and gather a harem of female companions.

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