Hey Brandin, God Bless your calling!
If your looking to become a religious, I’m not sure I would go to your diocese for help or your parish priest either. While they might be able to help you discern your calling, they probably don’t have the specific information your looking for. These days, nearly every religious order or congregation has a web-site and most of them are very thorough, well done and full of information that can get you started. Not only can you find out the specifics such as the orders charism, spirituallity, vocations, history, requirements etc. etc, but they will always provide you with a point of contact so you can get in touch with them.
There are differences between orders and congregations also. An order, such as the Benedictines, Dominicans or Franciscans, live according to the Rule of Life written for them by their founders. Congregations on the other hand exist to live a specific charism, such as the Passionists, who’s founder made their charism the preaching of the Passion of our Lord, or the Congregation of the Most Holy Redeemer (Redemptorists) whose original mission was set forth by St. Alphonsus was to strive to follow the example of Jesus Christ in preaching the Gospel to the poor. The vows one takes upon entering a congregation differs in that they are “simple vows” as opposed to the “public vows” one takes in an order. And as another poster already mentioned, in alot of orders or congregations, being a priest is secondary, being a religious brother is first.
Here’s a web-site with links to nearly every order and congregation there is (I think!) As you can see, there are alot of them out there! Enjoy your discernment!