Wow I am not in your league
I am currently migrating from a dedicated docker host to a proxmox host with multiple LXC containers.
old host - 23 docker containers, 128GB system drive, 4TB data drive
backup server - 1 docker container, 1TB disk
proxmox - 3 LXC containers, one of which has 3 docker containers. 500GB system drive, 4TB media drive (not LVM)
The plan is to migrate the loads on the old host to the proxmox host. I also have another 4TB drive coming with the intent of setting up a RAID with 2 of the 4TB drives.
I use calibre to manage my collection. Calibre creates a folder per author and a sub-folder per book. I also have separate Calibre libraries for fiction, non-fiction and comics.