Creating a playbook for yearly SBRs on multi-year contracts

We have generally used playbooks to remind CSMs to prep and schedule an SBR with their customers 90 days prior to a renewal date. However, with more and more of our customers moving into multi-year deals, the renewal dates might not be for another 2-3 years.

How are playbooks being set up to remind CS to schedule and prep for their SBRs on these types of customers? We want to get in a best practice of eventually have 2 SBRs for our most strategic customers a year and one for our smaller accounts.