There's manga about cooking, golf, video games, samurai, World War II, social problems, fantasy, scifi, single parenthood, mountain climbing, volleyball, lesbia

There's manga about cooking, golf, video games, samurai, World War II, social problems, fantasy, scifi, single parenthood, mountain climbing, volleyball, lesbians, office work... anything you could think of. "Large breasted women attracted to the socially awkward nerdy guy" is just a Western meme.