A hosting company that implements podcasting 2.0 / Value4Value features.

They can be found at podcastindex.org

BitTorrent. I'm trying to find more people interested in using it for nostr content, check out the #bitstr hashtag

There's already a NIP for posting torrents on nostr, and you might be able to originate your content from archive.org for free web seeding even if my plan doesn't work out here