Maybe not Khorne though there’s an argument to be made that anger/rage aren’t inherently bad. Similar to Nurgle who is just disease. Disease doesn’t have morality.

However, Tzeentch is most definitely a good guy. How can you possibly think knowledge is evil? Knowledge is power and freedom. Knowledge is everything and with it you can achieve so many things.

Slaanesh just wants to fuck around. He likes sex and lots of it. You have to be a puritan to think Slaanesh is evil. Drugs, sex and rock n roll aren’t evil - they’re fun!

The enemy of Chaos is the fascist Imperium of Man. THATs true evil!

So in conclusion - the Chaos Gods are the good guys.