I suggest mining and jewelry. Jewelry is rewarded with purple gems. The profit of cutting source drilling is considerable. At present, I only have two majors, Forging and Inscription. I am less than 600, and everything else is full. There are seven roles in the whole department, that is, jewelry is the most profitable, mining and endurance, and the most needed attribute of tanks is endurance. Don't listen to others say that jewelry needs a lot of money. In fact, it doesn't cost much to practice jewelry while mining. My first major was jewelry. Although it takes a little time to mine by yourself, it is very profitable for beginners.