Oh ok I got it 😅 I thought you meant for use here in a Nostr client and was trying to imagine where a screensaver would go 😁 I’ve seen some interesting art on nostrland.com. Also #[4] posts a lot of artwork and maybe has some ideas where to find more. You could also pay to access the full directory of media on Nostr.build. Not sure how much is cataloged there or how far back it goes. Those are the first things that come to mind.