I recommend " Fantasy: Sign in to Chaos at the Beginning " and " The Foreign World Begins from Invincibility " to you. They were all fantasy novels where the main character traveled through another world and was invincible from the beginning. The former was the story of Dong Changsheng transmigrating to another world, obtaining the check-in system and becoming invincible, while the latter was the story of the main character Li Xiaoqi transmigrating to the Deity Continent and becoming invincible. However, the plot was not just about killing, but also about intellectual warfare. I hope you will like my recommendation.