In high school I fell in love with Buddhism. For about 4-5 years I considered myself Buddhist. DT Suzuki, John Blofeld, Christmas Humphreys, Walpola Rahula, these were my “Fathers” whom I followed.
Personally I think Doaism has more in common with Orthodoxy than Buddhism, but honestly Theosis and Nirvana are such polar opposites that I see little common ground there. The karma, dharma, and even meditation aspects are light years apart.
Hieromonk Damascene, a Well-respected monk, author, and student of Father Seraphim Rose, wrote a book on Christ as being the Mystical Dao. Very cool book. You might like it.