self-study material sought

I am doing a retraining as IT-specialist atm and have 2 weeks full time ahead to dive into virtualization. The main training will we looking at Hyper-V which I have not interest whatsoever in. Now I want to get a good grip on the libvirt/kvm/qemu side of things and am looking for good learning resource to dive into for this. Can anybody recommend anything? * I like video but am able to read * "just google around a bit"/"search on youtube" is not the kind of recommendations I am up for (I will do this if noting else comes out of this anyway) * I'd like to go from 0 to hero (even though I am a bit above 0 already, but like to start from the ground) * alternatively proxmox would be a topic worth considering for me looking forward to any recommendation in this. thx and best Gunnar