I am hearing knocking noise inside the valve cover or around the spark plugs

Knocking noise is not something that typically could be caused by spark plugs, coil, or wires. It sounds like a noise from parts that should be internally lubricated. Hands on testing by professionals is needed. https://repairpal.com/repair-shops/dodge-repair-and-service-in-chinle-arizona

All 3 engine options have had problematic valve train issues. 3.7L and 4.7L exhaust valve seat becoming dislodged after engine overheating. 5.7L valve return spring breakage.