Brigham Young is focused mainly on Mormon theology, and they are the top of their field in that area. Yale divinity school is perhaps the best graduate school for studying theology. Christian colleges with good theology and religious studies programs include Wheaton College and Westmont College. You could also look into seminaries, but I don’t know much about those.
@allison1 I majored in Theology in Japan, and studied in Utah as an exchange student. I’m interested in graduate school😊 I focused on Russian Orthodox Church in university, but now I’m reading Mormon’s literatures. I think I’m brainwashed by Mormon people, haha