Started with Zen training, now Tibetan (Mahayana).

Shamatha Viphashana (mindfulness-awareness) is the technical varient.

My teachers (US) were taught by Chogyam Trungpa Rinpoche who was inspired to form the Shambala path, secular teachings tailored specifically for the western mindset.

Pema Chödrön is probably the most recognized active author/teacher from this lineage.