Cloud Security Track

I need some recommendation about starting with cloud platform and then
securing the cloud premises. Any recommendation or path to get started
with understanding cloud as there are more course/exam/platforms - like
AWS, Azure, Openstack, Kubernetes, Oracle cloud
With these certifications, I am lost and
confused where and how to start.
Appreciate if someone could guide me to
get started with cloud platforms and then securing the cloud.
My experience with cloud...
Achieved : GCIH, CEH
Certification Goals : ECCPT, OSCP, CISSP, CCNA CyberOps, CCIE, WIFU
Comments
On the following link, there are modules that cover topics such as defining cloud computing, key cloud concepts, services, models, and more:
https://docs.microsoft.com/en-us/learn/paths/explore-microsoft-azure-cloud-concepts/