Good herbs for stress are, definitely, ginseng, ashwagandah and kava. They are good herbs to drink in general too because they are adaptogens, which means they will address whatever is out of balance. I drink all three. Gingseng is my favorite and the one that I actually feel a difference after I drink it.
Minerals and trace minerals are good too for supplying and balancing the body. I take these minerals that are available in my local, that taste like a mix of dirt and golden seal, and they make my body tingle and then I get such clarity. Check out what is available in your area. We are made of minerals and we really need them.