Hello there. I noticed that there were not any replies. I am so sorry! Had I noticed this question earlier I would have replied earlier. There are schools where you can learn to become a prophet. However they are not mainstream where you will find it being called,"Prophets Cal State University" : )
So the question is rather ARE there any schools? Because it's not like there are an abundance of schools to pick and choose from where you could conclude at the end of much research that "this one is the best".
The best way to learn is directly from prophet to prophet. There is some measure of instruction that could be imparted from books. In fact, it is probably good to get as much material as possible on the subject in order to give you a workinng base of knowledge regarding the matter in question.
But nevertheless, your real training will begin once you are under the direct tutelage of a prophet. To give you a brief introduction, I will share this with you.
You have the "disciplines of a prophet" the "trials of a prophet" and the "assignment of a prophet". If God is calling you to be a prophet, nothing anyone can say or do can change this call or cause it to go away. Therefore, if God is calling you to be a prophet, it is your responsibility to develop your gift. Do not seek man's approval. For if you do so, you could be in for a LONG wait.
Always begin where you are at. For when the student is ready, the teacher appears.