You're probably not going to get what you want for free. I think the biggest storage option at no cost I've seen was for 20 megs or so. But that was a while ago.
If it's for a video portfolio, and you really need that amount of space, save up and take the plunge...
It will be worth it in the long run.
https://www.darrylworley.com/
https://www.defendamerica.mil/nmam.html