PTypes - Correspondence of PTypes, Keirsey, Enneagram, Psychiatric, and Astrological Types
actually, something like this has already been done . The correspondence is not observed correlation. Its more like they looked for traits of each and matched them as best they could (astrology, enneagram, MBTI, Oldham)
Mine matches EVERYTHING! Im ENFJ, enneagram 1, born in Aquarius, have been mildly OCD, and was called very conscientious not but a week ago.