Just my opinion...

But trying to find a site that is a good filler of requests is to subjective... There are just to many variations in that sentence to give a easy answer...

I think you would be better off asking for a tracker that specializes in your wanted - educational videos - and then hope they are most likely be able to help you find what you need.

And sorry, i don't know of any specializing in your wanted But with a look around my places, RGGEDU does come up here and there. If you knew one your actually needing i can see if i can find it anywhere i have??

WH