PowerCLI Properties

I would work up something like this

#Connect to ZVM
Connect-ZertoZVM
#create empty array to dump my final product
$refinedresults = @()

#save all sites to a variable
$mysites = Get-ZertoSite

#enumerate through each site and do what you need to.
foreach ( $site in $mysites )
{
#add a custom property to my site such as a friendly name value or a scripted property or something
$site | Add-Member -NotePropertyName 'MyCustomProperty' -NotePropertyValue {'do stuff here'}

#check for a certain condition to help filter my results
if ( $site.property -ne 'value' ) {
Write-Host 'Some response'

} else {
#add my result to the final
$refinedresults += $site
}

}

I’d recommend not writing to host unless you absolutely have to. Once you refined your results, you could do something like this:

$refinedresults | select 'property1','property2','property3','property4'

the important thing to remember is to use variables. That will let you work with the object as much as you want before you output the final result.