Analytical (or research) paper on Orthodoxy and Orthopraxy in Buddhism in India, China and Japan

An analytical (or research if you have an interesting thesis and argument) on the topic of tensions between orthodoxy and orthopraxy in Buddhism. I don’t have an exact header, idea, or thesis (that’s why I’m here), so I hope you can develop some interesting observations or arguments. It’s allowed to use other sources for the sake of argument (for example, comparing to orthodoxy/orthopraxy in other religions), but predominantly preferred sources must be used.Preferred sources (let me know if you need access to any of them):
Ames, Roger T. and Henry Rosemont, Jr. The Analects of Confucius: A Philosophical
Fingarette, Herbert. Confucius: The Secular as Sacred.
Gomez, Luis. The Land of Bliss.
Harvey, Peter. An Introduction to Buddhism.
Hee-jin Keel, Understanding Shinran
Hori Ichiro, Folk Religions in Japan.
Hurvitz, Leon. trans. Scripture of the Lotus Blossom of the Fine Dharma
Lopez, Donald. Buddhism in Practice
Lopez, Donald. Buddhist Scriptures
Lopez, Donald. Religions of China in Practice
Lopez, Donald. Religions of India in Practice.
Lopez, Donald. Religions of Tibet in Practice.
Matsunaga, Daigan and Alicia Matsunaga, Foundations of Japanese Buddhism
McRae, John. Seeing Through Zen.
Payne, Richard. Tantric Buddhism in East Asia.
Pu, Muzhou. In Search of Personal Welfare.
Sharf, Robert H. Coming to Terms with Chinese Buddhism.
Stone, Jacqueline. Original Enlightenment and the transformation of medieval Japanese
Buddhism.
Strong, John. The Experience of Buddhism.
Tanabe, George ed., Religions of Japan in Practice
Teiser, Stephen. The Ghost Festival in Medieval China
Watson, James L. and Evelyn S. Rawski. Death ritual in late imperial and modern China.
Wright, Arthur. Buddhism in Chinese History.
Yampolsky, Philip B. trans. The Platform Sutra of the Sixth Patriarch
Yokoi Yukio, Zen Master Dōgen