We can send our video files to your e-mail adress with wetransfer or something like that and you put them in your instagram account as IGTV. In that way the videos will be watchable all together in one place. Done like that, the people don't need to create an Instagram account. If you watch with your PC or Mac and not with your mobile you need just the url. That's all. If they ask you to sign in, just ignoring.

Here is an example: https://www.instagram.com/p/CSeODDljIXg/