Free videos for the IT Pro community are posted on https://www.youtube.com/c/DeploymentResearch and we also have a few free videos available on the otherwise commercial ViaMonstra platform: https://viamonstra.com.
Video-based Training (commercial)
Can't attend a training in person? Having a hard time finding budget approvals to travel? Well, a Video-based training is the second best option. These video-based trainings are filled with presentations and live demos of Windows Operating Systems, MDT and/or ConfigMgr content.
Again, check out the ViaMonstra platform for a complete listing: https://viamonstra.com