If you do not know 538, it is an American website using statistical analysis to tell stories about sports, politics and economics. It was launched in 2008 by Nate Silver.
In 2019 FiveThirtyEight published a personality quiz. They say...
"Meet the Big Five, the way most psychologists measure and test personality. It's a system built on decades of research about how people describe one another and themselves."
The editors also claim this personality test is based on science and "not junk." It looks at 5 traits - extraversion, agreeableness, conscientiousness, negative emotionality and openness to experience.
At my age, I pretty much know who I am, but I still found it informative and interesting. You can take the test by clicking here.