List of alternative cores for the MEGA65: Website hosted by GitHub Pages here:
https://sy2002.github.io/m65cores/
The MEGA65 File Host is linking to this list:
https://files.mega65.org?pr=dd6cdf24-de8b-4b8a-b5ac-1e2f2a081f64
The list is in the file index.md. If you want to add your project, please open an Issue or a Pull Request. Work-in-progress projects are welcome.