I check into the Processing website on a regular basis. The Exhibition section has a regularly updated section of amazing visual experiments.
Here’s just a sampling of what’s there now:
https://www.vas-animatum.net/index.php?w=3
https://www.coolbubble.com/programs/index.htm
https://jimfl.tensegrity.net/p5/IFS/
https://www.ghostagency.net/processing/bio_1a/index.html