Especially with more than just a handful of SQL servers, I believe there is no way around administration with PowerShell. I recommend the PowerShell module dbatools, as it is open source and is actively maintained and further enhanced.
I will first show you how to install and initially set it up, and I will also discuss its use in environments without an Internet connection.
I will then show you how to use the module using typical administration tasks.
Although initial knowledge of PowerShell is helpful, it is not a prerequisite for attending the talk.