There are various teachers we found to teach very healthy Gospel truths. These teachings are life changing, and it's truth that sets us free.
In my life there was a specific order in which I listened to these teachings, and it was progressive truths that build on one another. The 40 Day Discipleship Program has a specific order in which it lists the teachers, and it's a good way to follow it, unless Holy Spirit directs you differently.
Not all of them has the same level of knowledge and experience in different areas, and we tried to list those teachings from each teacher in which they bring a unique aspects of the Gospel to the front in the best manner. Some of them might even have some teachings which we don't 100% agree with, but all the teachings listed here are healthy and life changing.
The Gospel can be summarized in one word: "Love". Love is not only in word and tongue, but in deed and truth (1Jn 3:18), worship God, and serve your neighbor, it's that simple!