😋According to your needs, I personally recommend the sci-fi novel " Super Alien ". In this novel, after the Earth was occupied by extraterrestrials, the protagonist Jiang Lie was transformed into an alien by aliens, but he retained human intelligence and the ability to devour and assimilate the genes of any race in the universe. He had to die or evolve to the highest point. The protagonist would encounter all kinds of difficulties and obstacles in the process of evolution, but he still did not change his mind and insisted on evolving. In the end, he controlled the Alien body and became the king of the universe. I hope you like my recommendation.😗