Campus Network Design

Hi all,
In attachment you have my Campus Network topology that needs to be configured. As you can see, it is a hierarchical structure, where the distribution layer consists of two layer 3 switches, and the core layer consists of two routers. Layer 3 switches are configured to support different VLANs and failover thanks of the implemented protocol HSRP. I need help with the configuration of the Core Layer. What is all necessary to configure (what protocols) on the routers for proper functioning of my Campus Network. Any suggestions?
Thanks in advance !!!