There are many great resources across the internet to learn and expand your knowledge within Cybersecurity, whether you are beginner looking to start a career, or a professional looking to grow and keep up with the latest trends, technologies and best practices. YouTube is an excellent source for this because there are dozens of channels with knowledgeable sources covering all different parts of Cybersecurity. Watching videos is one of the most engaging and interesting methods to learn and you can take advantage of all these videos for free!
See the list of top channels below

List of the top 20 Cybersecurity YouTube channels:
Check out this list of the top 20 Cybersecurity channels on YouTube (in no particular order). These are active channels that post great engaging content on a frequent and consistent basis, so we encourage you to subscribe to and check for new videos to continue learning!
Professor Messer - https://www.youtube.com/c/professormesser
Simply Cyber - https://www.youtube.com/c/GeraldAuger
SANS Institute - https://www.youtube.com/c/sansinstitute
Titan HQ - https://www.youtube.com/c/TitanHQ
Inside Cloud and Security - https://www.youtube.com/c/InsideAzureManagement
Security Weekly - https://www.youtube.com/c/SecurityWeekly
InsiderPHD - https://www.youtube.com/c/InsiderPhD
The cyber mentor - https://www.youtube.com/c/TheCyberMentor
Hackersploit - https://www.youtube.com/c/HackerSploit
zSecurity - https://www.youtube.com/c/zSecurity
TechChip - //www.youtube.com/c/TechChipNet
David Bombal - https://www.youtube.com/c/DavidBombal
Loi Liang Yang - https://www.youtube.com/c/LoiLiangYang
NetworkChuck - https://www.youtube.com/c/NetworkChuck
John Hammond - https://www.youtube.com/c/JohnHammond010
Seytonic - https://www.youtube.com/c/Seytonic
Cyberspatial - https://www.youtube.com/c/Cyberspatial
EC Council - https://www.youtube.com/user/eccouncilusa
Cyber Insecurity - https://www.youtube.com/c/CyberInsecurity