Trans and Buddhist: Finding Each Other
Trans*Buddhists is a small collective of Buddhist practitioners from different traditions who seek to address systemic exclusion of transgender and gender nonconforming people from Buddhist spaces.
International Transgender Buddhist Sangha is a Facebook group (and page) facilitated by Yvo Manuel Vas Dias, a transgender man in the Netherlands.
Trans Buddhist Anthology is a forthcoming book, but the Facebook group behind it is also a good way to find resources.