Aaaaaaaaah this reminds me of what my sister used to doIt wasn't even just MBTI (although that was my fav), I did basically any personality quiz...I loved seeing if things matched. I even got really deep into this specific typology, there are things called "enneagrams" and "socionics" that give you more detail in addition to your 4letter MBTI results.
Accuracy wise though, it's said the "Big 5" is more reliable...I don't really like that one though.