I made a lot of videos with material testings and training with pimples. There are some individual highlights as the Ding Yi Special. You will find a lot of techniques with short and long pips in OX and with sponge.
*Ding Yi's material has not been approved by the ITTF since years. You can't use it at official tournaments
Hyo Won is a charismatic player and her matches are spectacular. The Korean Table Tennis Association made two videos with her. She describes techniques, foot work and tactics of the classic defense.