Type Six: A Study in Enneagram Subtypes
This video explores the three subtypes of the Enneagram Type Six using three main characters from Antwone Fisher, Father of the Bride, and Loki.
From "The Complete Enneagram" by Beatrice Chestnut...
"Each of the three Six subtypes expresses a different approach to dealing with the passion of fear and related anxieties. Self-Preservation Sixes feel a need for protection and so deal with fear by making connections with people. Social Sixes cope with a social fear that makes them afraid of doing the wrong thing in the eyes of authorities by consulting rules and reference points. And Sexual Sixes deal with fear by denying their vulnerability and combating fear from a position of strength."
Terminology differs between Enneagram teachers. Historically and today, most people refer to the Instinctual Variants/Biases as Social, Sexual, and Self-Preservation. Some substitute "One to One" for Sexual, although I personally think this mis-represents the nature of the Sexual "instinct", and is based more in an aversion/misunderstanding what "Sexual" actually means.
Teachers Mario Sikora and Maria Jose Munita of Awareness to Action use the alternate names of Navigating, Transmitting, and Preserving, which I think do a better job of capturing what each Instinct is actually going for.