Hi!
The other day I found this interesting article from Nik Charlebois, he talks about how to automate a replicate farm of SharePoint, this farm can be used as development farm or even Test farm.
What he is explaining in the article, is how can we retrieve all the information from our SharePoint 2013/2016 farm by PowerShell (he wrote a PS1 to do that) and collect all this information to create a series of PowerShell codes.
Once this information has been retrieved, is it possible to replicate your environment to another location on-premises.
Hope it helps!
Albandrod's Memory 