GNS3 Academy: https://bit.ly/2HuEY80
Udemy link: https://bit.ly/2EFyHU8
DavidBombal.com: Part of subscription http://www.davidbombal.com
Learn Linux with GNS3 and Cumulus Linux. This is a great way to get comfortable with the Linux CLI, but also learn about whitebox switching and other technologies at the same time.
