Monitoring, baselining, measure trend and watching and alerting on events
i use the ssms (SQL Studio) and powershell (v5) on server 2012...2019.
during my career i have used some great tools like New Relic, System Center Operations Manager (SCOM), Heroix, Spotlight, and some others. Here are some free (limited in some ways) tools to use:
SQLGrease - http://www.sqlgrease.com
- free to use with some interesting limitations.
Spotlight Cloud - http://www.spotlightcloud.io/pricing
- basic is free to use up to 5 servers