Media hosting.

check out https://nostr.build

You can e.g. get a creator account for 21k sats which hosts 5GB of data for you to manage all your media uploads (think: delete, organise, hide/show for public).

You then also have a page ppl can visit based on your npub with your uploads.

Handy if you offer graphic design services, make art, video's.. are a content creator and you want more control over your files on nostr.

There's two more tier options, one for 50k and one for 100k sats, with more storage and different functions.