Hi @mahgup95 , welcome to the forum.

You can start with https://pve.proxmox.com/wiki/Deploy_Hyper-Converged_Ceph_Cluster
There are also many other resources that may be helpful, including Youtube video guides if you are a visual learner.

PVE, including its Ceph component, are free to use for anyone. Those who need production support can elect to purchase a Support Subscription for their installation.

Also note that it is recommended to have an odd number of servers in your cluster: https://pve.proxmox.com/wiki/Cluster_Manager
This requirement can be satisfied by adding a QDevice type node.

Cheers

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