Powershell to Monitor Services

Hello,

I have specific services that I would like to monitor on specific servers and send out alert if service is stopped.  Below is a script that works for monitoring one service on a specific server.

Ideally, I would like to do this to monitor multiple services on multiple servers.  Not all servic names are going to be same for all servers.  I am trying to think how to do it.  Any guidance would be appreciated.

#All Variables are defined below
$servername = 'InternalServerName'
$ServiceName = 'InternalServiceName'
$ServiceStatus = Get-Service -ComputerName "$servername" -Name "$ServiceName"
$ServiceState = $ServiceStatus.Status
#All Variables are defined above

# All functions are defined below
Function ServiceCheck
{
if 
    ($ServiceStatus.Status -eq 'Running') {Write-Host 'Running'}
Else
   {Sendmail("Alert Triggered")}
}
Function sendMail ($message)
{
    "Sending Email"

    #SMTP server name
    $smtpServer = "smtp.office365.com"

    #Creating a Mail object
    $msg = new-object Net.Mail.MailMessage

    $emailPassword = "HiddenPassword"
    $emailCredential = New-Object System.Net.NetworkCredential("email address removed for privacy reasons", $emailPassword)

    #Creating SMTP server object
    $smtp = new-object Net.Mail.SmtpClient($smtpServer)
    $smtp.Port = 587
    
    $smtp.EnableSSl = $true
    $smtp.Credentials = $emailCredential

    #Email structure
    $msg.From = "email address removed for privacy reasons"
    $msg.To.add("email address removed for privacy reasons")
    $msg.subject = "Alert - $ServiceName on $servername is $ServiceState" 
    $msg.body = "$ServiceName on $servername is $ServiceState"

    #Sending email
    $smtp.Send($msg)

    "Email Sent"

}

# All functions are defined Above


#All functions are called below
cls
ServiceCheck
#All functions are called above