Monitor Azure RDS Farm

Hi All

I'm usually found working within Microsoft Intune however a new role has me looking after an Azure Compute / IaaS RDS environment too.

Anyway, the daily BAU checks are:

• Are all the servers in the RDS Farm running?
• Have any servers "escaped" from the RDS Farm?
• Is the RDS Farm running ok?
• Any low disk space errors?

So, what's the best and most cost effective (this is a charity / non-profit org) to monitor the RDS farm?

Info / suggestions very welcome