Actually, been studying up on Alibaba cloud recently. They have pretty comprehensive documentation, and training videos. Certifications as well.
Some are free and the rest are pretty cheap.
Seems Alibaba has made it a point to copy AWS as closely as possible to make it easy to transfer skills across. Even the acronyms and instance sizes are similarly named (EC2->ECS, ELB->SLB, etc).
Give it a spin!