It might be helpful if described your infrastructure. There is a pretty big difference between managing physical Windows servers in a data center and managing Linux servers all in AWS.
If you are all or mostly cloud, Terraform + config management with a CI pipeline takes care of a lot. Then a wiki that covers "Getting Started" and a few how-to articles.
For physical infra you need the setup for DHCP, updating DNS based on DHCP, PXE boot imaging, IPMI access and configuration, switch and router configuration, what servers are connected to which switch ports, PDU management and monitoring, and on and on and on.
If you are all or mostly cloud, Terraform + config management with a CI pipeline takes care of a lot. Then a wiki that covers "Getting Started" and a few how-to articles.
For physical infra you need the setup for DHCP, updating DNS based on DHCP, PXE boot imaging, IPMI access and configuration, switch and router configuration, what servers are connected to which switch ports, PDU management and monitoring, and on and on and on.
You end up with something like NetBox (https://github.com/digitalocean/netbox) or Collins (https://tumblr.github.io/collins/), plus a bunch of other stuff gluing things together.