Comment by zdragnar

Antiochian (eastern rite) and Assyrian Orthodox both do at least some of their masses in Aramaic, which can be interesting, though there may be a mix of others as well (note that Assyrian is fully independent, whereas Antiochian is in full communion with the broader Easter Orthodox church).

"Western Rite" would be those that adopted Latin or local western languages and traditions- think organs or other musical instruments, unleavened bread, crossing yourself from left to right, etc. The Catholic and Protestant churches are like this, along with a relatively small number of Orthodox churches. "Eastern Rite" are those that follow the Eastern Orthodox traditions, chanting the divine liturgies in older languages, no musical instrumentation, leavened bread, crossing yourself from right to left, etc.