Video embed options?

Hi

My customer has 6 short animations which need to be added to a Rise 360 course.

1. They need to have captions (turn on/off by learner)
2. If hosted externally, not be publicly accessed (so link only)
3. Preference is to not directly load them into the module i.e., reduce load times of module

I have used Youtube to host and embed successfully however, the customer doesn't like the YT recommendations at the end of each video. Could someone assist with providing alternative solutions, please? Prefer free solutions if possible.