Classic Returning player question

So, as the title states, I'm a returning player of 6+ years. Mainly working on my 90 spriest and an 80 arc mage. Currently trying to focus more on the mage tho. Curious to know in terms of making money, what would my best options might be? Currently only have MoP but plan on getting bfa in the near future. Should i just level per usual and sell all greens/mats or work on professions making money that way? Any and all help is appreciated! via /r/wow https://ift.tt/2orDl5F