Lum (Urusei Yatsura)

Rumiko Takahash is a famous name in Manga, both in the Western world and in Japan - mostly for the Ranma ½ and InuYasha Manga series. Not everyone in the West knows about some of her older works, however.

Maburaho

There really hasn't been much thought put into making Maburaho different than anything that has come before, so I can classify it by slotting it neatly into the “Harem” pigeon-hole.

My Cat Loki

Apart from the whole fantasy, “I‘m imagining that my cat can talk” thing there is a very normal story being the Manga. There are no aliens invading the planet, there are no people with superpowers, it’s just an artist and his relationships with people, plus his journey to overcome his emotional withdraw.

Oh My Goddess!

The standard Harem Manga format:

The (male) lead character, though some unlikely course of events, winds up rooming with several girls, who are always attractive, and usually supernatural. Cue romantic comedy.