Youtube user Musicombo has plenty of videos showing different sorting algorithms in action and their runtime behavior under different (pathological) cases:
Watching SORTDEMO.BAS at the formative age of ~11 baited me into programming. I recall messing around trying to make even faster versions. https://www.youtube.com/watch?v=leNaS9eJWqo
https://www.hackerearth.com/practice/algorithms/sorting/quic...