Must Watch:

1. https://www.youtube.com/watch?v=2SuvO4Gi7uY
2. https://www.youtube.com/watch?v=rI_y2GAlQFM&pp=ygUWd2F2ZSBmdW5jdGlvbiBjb2xsYXBzZQ==
3. https://youtu.be/TO0Tx3w5abQ

Web:

1. https://marian42.de/article/infinite-wfc/
2. https://oskarstalberg.com/game/wave/wave.html
3. https://paulmerrell.org/model-synthesis/
4. https://thecodingtrain.com/challenges/171-wave-function-collapse

For Game Engines:

1. https://godotengine.org/asset-library/asset/1951
2. https://pvs-studio.com/en/blog/posts/csharp/1027/

Code:

https://github.com/mxgmn/WaveFunctionCollapse

https://github.com/CodingTrain/Wave-Function-Collapse