where can i find the download link for Mac OS High Sierra 10.13.0

First thing to know is High Sierra 10.13.0 is no longer available for download

Apple removes the previous version of the full installer when a new version is released.

So the full installer version available now is the last/ latest version 10.13.6.

This is all you need.

Second thing to do is open your Safari browser, Firefox will not work for this.

Click on the link below.

How to upgrade to macOS High Sierra - Apple Support

Go to Section 4 and click on Get macOS High Sierra.

This will redirect you to the App Store High Sierra page

it should say Get or Download.

If the App Store says ‘Open’ then it is detecting a previous download of the install app

go to the Applications folder locate Install macOS High Sierra.app.

Move it to the Trash, empty the Trash.

Restart, click on the link again, the App Store should say ‘Get' or 'Download'.