How to tag and store pictures downloaded from the internet?

I've been accumulating art and pictures downloaded from the internet, what's a good way to store and tag them with the original artist and source? Maybe a simple solution would be just adding appropriate EXIF data to the files? This approach would still require a good folder structure to make sense of. Another option I came across was https://hydrusnetwork.github.io/hydrus/index.html, but after trying it, the experience was really janky and not pleasant. Or I could even host an image booru so the collection would benefit others too, with https://github.com/rr-/szurubooru perhaps?

How do other people deal with it, I'm curious to hear.