Are there any novels that describe the world of X-Men, comic book heroes, or Avengers?

A few novels involved the X-Men, comic book heroes, or the Avengers world. Here are my recommendations: 1. "I'm in Marvel, there's a gate in my mind." The protagonist, Duanmu Ruifeng, traveled to the Marvel world. In the process of learning magic, witnessing the birth of Captain America, and assisting in the collapse of the Hydra conspiracy, he gained the ability to travel the universe and fight alongside superheroes such as the Avengers and the X-Men. 2. Marvel: Orochi Musou: The protagonist transmigrated to the Marvel world and became an artificial snake created in the Nests base. He ran into the more dangerous Marvel world and fought with superheroes such as the Avengers and the X-Men. 3. "I Am the Legend of the Heavens": The protagonist shuttled through the world of major films and television, fighting side by side with actors, superheroes, and villains such as Chen Haonan, Chen Jiaju, and Huang Feihong. 4. "A God's Super Marvel": The protagonist, Ronan, traveled to the Marvel world and became superheroes such as Spiderman and Tony Stark. He fought alongside superheroes such as the Avengers and X-Men. I hope you like my recommendation. Muah ~