My friend, if you have not heard of it already, I am proud to introduce you to the magic that is Observable: https://observablehq.com/collection/@observablehq/visualizat...

I'm a full stack web dev, not a data scientist, but Observable has dramatically changed my relationship to code. The last time I felt this excited by programming was about 20 years ago when I was in middle school and discovered Game Maker's scripting language...

Perhaps the Information is Beautiful site?: https://informationisbeautiful.net

There is also the Data is Beautiful reddit: https://www.reddit.com/r/dataisbeautiful/

Apologies if it’s not what you had in mind, but the examples in the MPL docs are exceptionally thorough when it comes to showing off advanced features (though they can be quite hard to parse).

https://matplotlib.org/stable/gallery/index.html

some examples on https://plotapi.com/gallery/ and https://datacrayon.com