Meyers-Briggs http://www.humanmetrics.com/cgi-win/jtypes2.asp
Squirrel personality! https://www.buzzfeed.com/perpetua/which-squirrel-matches-your-personality?utm_term=.nokxgV8Q9#.qmz8BZ1ld
Online certification https://ww3.hunter.cuny.edu/irb/view.php?id=12953