You can cover most of this path without paying for the learning itself. Here is what to use for each stage and what each one is good for.
AWS Cloud Practitioner Essentials (AWS Skill Builder, beginner, about 7 hours) is the official AWS training for the CCP exam, straight from Amazon and free. It is the cleanest structured overview of AWS core services, so it is where most people should begin the AWS route. Find it at /courses/aws-cloud-practitioner-essentials, with the platform profile at /platforms/aws-skill-builder.
AWS Certified Cloud Practitioner Study Course (freeCodeCamp, beginner, 13 hours) is a single long YouTube video that walks the whole CCP exam. It is the best free option for dedicated exam prep because it is thorough and you can rewatch the parts that did not stick. Use it alongside the official essentials, not instead of it. See /courses/freecodecamp-aws-ccp and the platform at /platforms/freecodecamp.
Microsoft Azure Fundamentals AZ-900 (Microsoft Learn, beginner, about 4 hours) is the Azure equivalent: free, official, and modular, so you can do it in short sittings. This is your entry cert prep if you pick Azure over AWS. It is at /courses/microsoft-learn-az-900, platform at /platforms/microsoft-learn.
For containers, freeCodeCamp's Docker course (beginner, 2 hours) is a fast, practical intro at /courses/freecodecamp-docker, and its Kubernetes tutorial (intermediate) at /courses/freecodecamp-kubernetes builds straight on top of it. Do the Docker one first.
AZ-400 Development for Enterprise DevOps (Microsoft Learn, intermediate, about 8 hours) at /courses/microsoft-learn-devops ties CI/CD, infrastructure as code, and monitoring together in an Azure context, and it is free with a certificate. Reach for it after the fundamentals. For the wider picture, our roundups of
free cloud computing courses,
free AWS courses, and
free DevOps courses rank the options in more detail.