Crop farming is a really important industry. We need to keep a constant supply of grains rolling in to feed us and livestock.
I really wouldn't know where to start. No type of farming is said to be easy, and all take a certain knack for things. If you are good enough at any of them, you can get a lot of money.
Heres something to try, make a comparison chart of all the advantages and disadvantages of the ones you are interested in.