It is famously the last version of macOS to support NVIDIA Web Drivers, making it the "Gold Standard" for Hackintosh builds using GTX 10-series (Pascal) GPUs.
The safest way to get the installer is through the Mac App Store. Even if it doesn't show up in a standard search, Apple provides a direct link via their support pages. Once downloaded, the installer sits in your /Applications folder as "Install macOS High Sierra.app." 2. Creating Your Own DMG via Terminal macos high sierra 10136 dmg
If you have the .app file, you can create a highly compatible DMG file yourself using the Terminal. This ensures your file is clean and untampered. It is famously the last version of macOS
Added multi-room audio support for iTunes. macos high sierra 10136 dmg