Catholic conservatives: A traditionalist avant-garde
The Rites of the Catholic Church [Catholic Caucus]
One and Many Churches (origins of the Church)
THE RITES OF THE CATHOLIC CHURCH -- There are many!
(Cardinal) Newman on Rites and Ceremonies
I’m aware of the Eastern Rite churches. I don’t think that’s what was being discussed though. I am fairly sure the original question pertained to Eastern Orthodoxy.