Ret Rendering Variant Roots for all sites

Get-VariantRoots.ps1

Set-HostProperty -HostWidth 5000
$roots = @()+[Sitecore.Sites.SiteManager]::GetSites() | ? { $_.Properties['IsSxaSite'] } | % { $_.Properties['rootPath'] };
foreach ($root in $roots) {
    $site = New-Object -TypeName PSCustomObject
    Add-Member -InputObject $site -Name 'path' -Value $root -MemberType NoteProperty
    $variants = New-Object -TypeName PSCustomObject
    Add-Member -InputObject $site -Name 'variants' -Value $variants -MemberType NoteProperty

    $variantFolders = gci "master:$($root)/Presentation/Rendering Variants" | select Name, @{Name = "Path"; Expression={$_.paths.Path}}
    foreach($variantFolder in $variantFolders){
        Add-Member -InputObject $variants -Name $($variantFolder.Name) -Value $variantFolder.Path -MemberType NoteProperty
    }
    $site | ConvertTo-Json
}