This is a random list of repos I've found useful
- Suzuki Scripts in particular the track template to action converter. Reapack repo: https://github.com/Suzuki-Re/Suzuki-Scripts/raw/master/index.xml
- Joep Vanlier has e.g. Filther
- Tukan
- Sonic Anomaly
- Arthur McArthur
- ReJJ For ReEQ.
- Floop
- JSFXCLones