There's royalty free videos - https://coverr.co/. Source: over 1 year ago

You can use this. It's coverr and I found it while spending too much time on YT. Source: almost 2 years ago

I found this for stock footage I've found free stock here but some of them have watermark. I'm sure you'll figure what to do on your own. Source: almost 2 years ago

A good source for free video backgrounds - https://coverr.co/. Source: over 2 years ago

There is https://coverr.co/ for great looking videos as well! Source: about 3 years ago

A post containing non-OC artwork should link the original source in the comments. "Art" post should credit the artist in the title. Original source should link to the artist's own post of the artwork and not from image aggregating sites such as Pinterest, Zerochan, Danbooru, etc. If you cannot find the original creator, then please try using SauceNAO or IQDB. Do not repost an art if its artist does not allow repost. Source: 7 months ago

When posting art you didn't make, credit the original artist in the title and provide a source link. Provide the URL to the original post made by the artist or link the artist's primary platform. If you cannot find the original creator, then please try using SauceNAO or IQDB. Source: 7 months ago

No good matches found! However, several possible low quality matches were found. To view them, use the saucenao website. Source: 7 months ago

You should use SauceNAO to find an artist's op. Source: 7 months ago

Try doing a search for the artwork on SauceNAO or IQDB. Source: 7 months ago