its typology!!(idk how to explain but basically putting labels on your personality traits(?))
specifically:
estp is mbti, 8w7 is ennegram, sx/sp is instinctual variant, 837 is tritype, sle is socionics, chol-sang is temperament, vfle is attitudinal psyche and scuen is big 5🫶🏻
if you want to type yourself i reccomend reading about this stuff rather than doing tests, its a bit confusing but fun:)