So, I will admit it. I am a personality nerd. I think that understanding MBTI typing makes us better parents, too.
Typing people into 4-12 kinds has been going on since Aristotle, and Kiersey (the one who named and described each of Myers-Briggs’ 16 types) makes a compelling argument that the ancient systems (like choleric, melancholic, etc) are observations of the same sort as those made by Isabel Briggs Myers. If you want to know the best personality test, I think it’s actually reading the descriptions until you land on the one that nails you.