Here are some pairs that work well:
There are others, remember to be creative and not always choose the cookie cutter combinations. If you have money to sponsor your professions, you can do whatever you want to, because you wont have to worry about supplying the production profession.
*The reason two crafting professions work well here is because you will get mats for tailoring from leveling as drops from humaniods (cloth), and this will allow you to "produce" mats for enchanting in the form of green items to DE. Tailoring isn't great for money, but Enchanting is pretty good. I wouldn't really recommend this combination, but if it benefits your class or playstyle, it is still a viable option for moneymaking.
More to come!