I mean Chinese Chan Buddhism, not Japanese Zen or Korean Seon. If not, what is the best course of action if one wants to become a monk in Mahayana Buddhism, but not in Theravada and not in Vajrayana? I am especially fond of Master Xuyun, are any of his disciples still around?
There's only two Ch'an lines active in the West that I know of, the first one founded by Hsuan Hua. Its headquarters are in California. It has branch temples, for the West mainly in the US, listed on this page.
There’s an Obaku lineage in NJ. It’s not purely Chinese, but definitely more “mainland” than it is Japan.
Of course, unless you’re looking tie back into your family’s culture, does the nationality really matter? Sitting is sitting. Your legs hurt the same if you’re speaking Chinese, Japanese, or English.