There are countless theories on the ideal Enneagram matches out there. Most of those theories are largely based on personal experience. Other experts argue that there are no ideal Enneagram type matches generally, and that it depends on the specific individual and their goals, desires, etc. While I tend to subscribe to the latter position (with the exception that I do believe that
certain instinctual stacking pairings are significantly better than others), I have recently thought more about the ideal Enneagram type matches, or in Socionics-infused words, one's "Enneagram Dual".
The problem is, that Enneagram compatibility is not black and white. There are many nuances that must be taken into consideration. And also, the theory must be able to have its roots in reality – meaning, people need to actually be drawn to and experience satisfaction and attraction with those particular matches.
As I was looking up the properties and qualities of the Enneagram types (mainly the canon Harmonic Triad and Hornevian Triad distinctions), I started to see how each of those traits was unconsciously looking for or would at least greatly benefit from their complement.
Even so, I still found this issue of Enneagram core type compatibility worthy of extra exploration and refinement.
Consequently, I went ahead and combined my findings with the types, and this was the result:
1's most beneficial type being
4.
2's most beneficial type being
5.
3's most beneficial type being
6.
4's most beneficial type being
7.
5's most beneficial type being
8.
6's most beneficial type being
9.
7's most beneficial type being
1.
8's most beneficial type being
2.
9's most beneficial type being
3.