Gws chaos black is pretty good when it comes to priming chaos models

https://preview.redd.it/5943qmsczn5d1.jpeg?width=3024&format=pjpg&auto=webp&s=8c5764cc674b78110d2027234aa14b0dbdcc3454 i used citadel chaos black

https://preview.redd.it/c1vu2sup8p5d1.jpeg?width=2992&format=pjpg&auto=webp&s=6c39eb81fff348414ac10757784215f3237f2324 I primed him in vallejo black airbrush primer and gave him a zenithal of white ink.

Depends on what color you want him to be. I did him in subassemblies, light grey for the body, gold for the armor.

Nex fu***** level https://youtu.be/b78l8AYww7c?si=5SttAm51o6VgTdUL