We would need a bit more info to give a more detailed recommendation, but for the basics:
Look at Bullseye routing where you put Skill Expression Groups as the ring membership, building those groups based upon what skills and skill proficiencies you want the groupings to have.
You can also do Preferred Agent Routing which then feeds to the Bullseye Routing.
Escalations would probably be handled by Preferred Agent Routing so you can designate which specific agents should get routed those interactions first, presuming you want to keep everything in the same queue.
But, as I said, more detailed info is needed to build a good, solid routing plan.
------------------------------
George Ganahl GCCX-AI, GCP, GCSME
Technical Adoption Champion
Genesys
2024 Community Member of the Year
------------------------------