Proxmox. I’ve been using it and deployed jellyfin in a container, they have a bunch of one-click deployments and it’s great. Or you can just use a VM to group Docker containers together. Having a beautiful web interface is huge, Plus being able to access that interface from anywhere via WireGuard/Tailscale is great.
If you do choose to go down this route, there is a “no-nag proxmox” script somewhere, and it will disable some warnings and give you deeper customization options. Well worth a look!
I second that suggestion, just install GrapheneOS. I switched from my iPhone to GOS over 6 months ago and haven’t looked back. It syncs with nextcloud for everything and it’s seamless!