Hi
depends on what your planning to do there are some standard campus best practice guides like this below
Cisco Enterprise Campus Infrastructure Best Practices Guide
http://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Campus/HA_campus_DG/hacampusdg.html
and there are multiple VSS best practices docs if you chose to use that feature and devices at the core
http://www.cisco.com/c/en/us/products/collateral/switches/catalyst-6800-series-switches/guide-c07-733457.html