how do you browse and collect art digitally?

I'd like to view more art. Where do I find it?

And after finding a nice picture, how can I save it and store it for later? How can I share "my collection"?

Not only digital art but art from 100 years ago but digital. Is there some wikipedia/openstreetmap/listenbrainz/tmdb for art?

Currently, I save the images and post them to my pixelfed profile (privately) with the source link and a title. It works but it is stupid.