If you are looking for information on the community's internal priests (not Brahmins), you should look into the distinction between the worship of Krishna vs. the worship of folk deities.
While there may not be a single paper titled "The Priest Tamilyogi," the definitive academic work on this subject is found in broader studies of the Yadava movement in South India. The Priest Tamilyogi
Academic literature generally views the "Priest" in relation to the Tamil Yadava community through two lenses: If you are looking for information on the