Initially, Bhāgavatas were not organized as a movement or sect. Subsequently many bhakti movements of Bhāgavatas came into being.
"Bhagavān." The Concise Oxford Dictionary of World Religions. . Encyclopedia.com. (November 18, 2018). https://www.encyclopedia.com/religion/dictionaries-thesauruses-pictures-and-press-releases/bhagavan
"Bhagavān." The Concise Oxford Dictionary of World Religions. . Retrieved November 18, 2018 from Encyclopedia.com: https://www.encyclopedia.com/religion/dictionaries-thesauruses-pictures-and-press-releases/bhagavan