Use LXC unless that’s for some reason not possible. It has less overhead than VMs. How many services you put into one container is for you to decide. I have one for jellyfin and one for the arrs and download client. Splitting everything into more containers might be beneficial, if something stops working. You can then fix or use a backup for the one thing without inhibiting the other services.

Unless you want to use docker. Then, as others have mentioned, make one VM and put all your dockers there.