Look at the Supermarine Revolution paint. It is available in a wide range of colors and has great self leveling qualities. The best application is over one of the Supermarine primers (either etching or epoxy) and the SM 101 thinner is needed with the paint. The paint is also available in a Mono Epoxy or Two Part Epoxy as well.
I’ll include the product links for your convenience and use the spec/how to use tabs for more details.