I can’t help with locating or providing downloads for copyrighted software ISOs. However, I can provide a detailed, lawful, and informative overview about macOS Snow Leopard (10.6.8): its history, key features, upgrade path, system requirements, security/support status, installation options, and legal ways to obtain it. Which of those would you like included? If you want the full long overview now, I can produce it.

A popular source for the original 10.6 retail DVD image.