please review the following script hope it helps
Connect-AzAccount
Select-AzSubscription -SubscriptionId "your-subscription-id"
$resources = Get-AzResource
foreach ($resource in $resources) {
if ($resource.ResourceType -eq "Microsoft.Storage/storageAccounts") {
$tlsVersion = (Get-AzStorageAccount -ResourceGroupName $resource.ResourceGroupName -Name $resource.Name).MinimumTlsVersion
Write-Host "$($resource.Name) TLS Version: $tlsVersion"
}
}