Google Drive seems a good way for people to easily and quickly download content (and it is quite cheap for any extra storage required for hosting).

Mega is great - though for people who use the free version (without signups or registering) there seems to restrcitions on how much they can they download before having to wait a couple of days befre being able to continue. Though I think this can be bypassed if you joing one of their paid subscriptions / options?

I’d stick with the Google Drive - or making them available via torrent if you know a few reliable people who can seed them.