Hi, @Md Safwathullah
You can visit here for more learning information on Cloud Architect Masters Program https://www.edureka.co/blog/category/cloud-computing/.
Regarding work from home, in this pandemic, most of the companies are providing it but still depends for which project you will be chosen for. What kind of requirement your new company will be having from you.
You can opt for any IT company where you can see openings in your domain.