The problem with the K-tape is that it should be placed by a professional who knows what they are doing, if used improperly it can further damage the problem area and create new injuries in other areas.
Yes, there is specialized training for it.
I will tell you about a weird product that really helped me.
Accupressure Mat.
https://spoonkspace.com/?v=7516fd43adaa
Something else that seems to weirdly help my knees are accupressure shoes. I use the addidas Addisage slide. I walk on the outside of my feet and it helps align.