Upload, strcuture new videoes in sharepoint for a large org.

We have migrated all Company Wide channel videos and created a shared SharePoint site for people to upload new videos so we have common sites where people can easily acsess and upload. However, we are a large organization with over 22,000 employees. Do you have recommendations on how we should structure this, how folders should be organized? We don't want to give everyone access to manage all the folders in that area, but they should be able to upload and view, so how can the functionality be similar to the old Stream, allowing for an easier way to publish a "public" video? Do you have any recommendations for this? Is there a another easier way?