Depends on what you're looking for. If your looking for new rotations for 70-80, then there are plenty of rotation guides on youtube. If your looking for a crafting basics guide, most of the ones from previous expansions will work just fine, crafting hasn't really changed since heavensward outside of skills and rotations.

You can also use the crafting optimizer on the web, google it. if you use it, just be careful about the level caps in each expansion. the optimizer has a hard time when your, say, 60, doing lvl 61 recipes. Once you hit 61 it works fine. same with 50-51 and 70-71. Just use some normal leaves for that single level to push you into the next tier of levels, and the optimizer works great.