disclaimer: I work for the company behind SQLDocKit

We have developed a tool that will help you with that https://www.sqldockit.com

To differentiate from other vendors we have built snapshots and compare technology (ability to compare any setting of the server that you have today and how it was configured for example 2 months before, so you can see the differences, and you can compare two different SQL servers so you can find differences in the configuration) and Best Practices that checks your SQL server configuration with the best practices Microsoft recommends and explains to your what you need to change on your SQL.