As a fan of web novels, I don't have the ability to store or search for fantasy novels with more than 7 million words. However, I can recommend you some classic fantasy novels such as Battle Through the Heavens, Martial Arts Pinnacle, Heaven Covering, Douluo Continent, and so on. These novels had a large number of readers and fans, and they had high literary value and influence. I hope you will like some of the works.