I found some interesting articles from the Journal of Chan Buddhism. This is volume 1, there is a volume 2, but it's behind a paywall, or you can possibly get them if you have an institutional login...

I've only read the Repositioning Xinxing 信行 (540–594) in the Chinese Meditation Tradition. It was interesting, but I've yet to find any more information on Xinxing, but it seems he was pretty early in the Chinese Chan record.

Also I've been wanting to find more peer-reviewed journal articles on Chan, if anyone has any suggestions on where to look!

The peer-reviewed Journal of Chan Buddhism: East Asian and Global Perspectives is the first of its kind in English to specifically present academic research about Chinese Chan, Korean Sŏn, Vietnamese Thìên, and Japanese Zen Buddhism. The Journal of Chan Buddhism is an interdisciplinary or cross-disciplinary journal and will accept submissions from all academic disciplines related to the study of Chan/Sŏn/Zen Buddhism, including, but not limited to: the history of religions, literary studies, Dunhuang Chan studies, Tibetan and Tangut language Chan studies, doctrinal studies, art historical perspectives, institutional history, anthropological research, and comparative, philosophical studies. The journal also offers book reviews and translations into English of innovative research articles by eminent scholars in East Asia. The Journal of Chan Buddhism has separate area editors (e.g., Chan, Sŏn, Zen) to facilitate broad but still multifaceted coverage of Chinese Chan Studies, Korean Sŏn Studies, Vietnamese Thìên Studies, and Japanese Zen Studies.

The journal is hosted by the Buddhist Studies Forum at the University of British Columbia (UBC), funded by the Tianzhu Charitable Foundation of Guangdong Province, China, and facilitated by a Social Sciences and Humanities Research Council (SSHRC) project on Buddhism and East Asian Religions (frogbear.org) at the University of British Columbia (UBC).