The Big Five
The Big Five personality traits -Openness, Conscientiousness, Extraversion, Agreeableness, and Neuroticism - constitute a widely used and empirically derived model in psychology for describing personality differences among individuals
What is the Enneagram?
The Enneagram is a personality system that describes nine distinct types, each with its own core motivations, fears, and behavioral patterns. It's used as a tool for self-awareness, personal growth, and understanding relationships, focusing on why people think, feel, and act the way they do.
We can all agree to disagree :-)
If you prefer reading instead of watching a video, here are a few articles on the subject.