Hi, a Rational here, leaning mostly toward INTP, I can be 50/50 with Extroversion and Introversion, depends on my mood and what is useful to me at the time. So, I've come to realize, that the best type I can ever team up with, will be ENFJ. Combining people skills, and abstract thinking, you know we could rule this world? This is partially humour, but c'mon, some of you can see it. INTP and ENFJ are like complimentary opposites that just work well together, kind of Yin&Yang. And some of the best leaders in history have been teams. The model of two people sharing power is nowadays used in Business and as well as Politics, with it in the past being made well known by the rule of Consuls over the Roman Republic, and later Co-Emperors of the Roman Empire(briefly stabilized the huge empire, which is better than nothing, because all empires fall one day.) I think, that at some point, we can do great things together. Now, I don't take personality typing too seriously, I believe people are more fluid than that, but I know there are some common traits within self tested or professionally assessed types that just do work well together in teamwork. Where one lacks, the other can make up for that, if the two desire. INTPs and ENFJs unite!!