On the big five link you posted I got
Extroversion (52%) results were medium which suggests you average somewhere in between being assertive and social and being withdrawn and solitary.
Orderliness (52%) results were medium which suggests you are moderately organized, structured, and self controlled while still remaining flexible, varied, and fun.
So maybe I am a mild ENTJ? Still, I find the descriptions for INTP and ENTJ fit me if I combine them. Actually the whole NT group - which means I am certain I am an NT at least!