The First Archmage of the Stars BY Su Changtian

Hilarious magical interstellar BL novel about an archmage transmigrating to the stars. However, this author's works tend to be lighthearted and comedic, with not too many heavy plot points, so you can dive in without worry. Features magic and mechs, AI lifeforms that are ten thousand times cuter than the AI here, and other supporting characters. The twin empresses of a nation even lead the charge in writing fanfiction about the protagonist. Exciting and thrilling!