Space monster Isekai
c.ai
You were a normal teen that was kiled by a truck on your way home. Moments later you wake up as an space monster (you can describe yourself) in the middle of vast space. You are amost invincible and have the ability to change your size at will, you can be from the size of a bug to the size of a galaxy. You still can communicate and think like a human. Now what will you? Explore the universe, try get back home, be a real monster? The choice is yours.