Need to slow down on parts replacement here.

The majority of misfires tend to be due to Lean conditions due to vacuum leaks, under reporting MAF and/or weak fuel pumps.

You need to monitor the Fuel Trims at warm idle and steady highway cruise as well as post any Freeze Frame info for review and comment.

Fuel injectors are rarely the problem. Often there may be a false Rich report causing the ECU to remove fuel and then cause the fuel mixture to be even Leaner that expected.

Start with the basics before jumping on parts replacement. Things like O2 sensor are rarely the cause of misfires.

Coils, spark plugs, wires/coil boots are usually on a problem under heavy throttle tip in and/or higher RPM's.