Here’s what I’d suggest to tone it down.
-Lower onscreen death body count
-Trim or remove Kylo hacking Lor San Tekka down
-Trim or remove Poe’s interrogation
-Remove Finn cursing in the Falcon
-Trim the rathtar scene?
-Trim Force vision Kylo massacre where he impales the guard
-Trim/remove Finn fighting stormtrooper
-Remove Finn yelling that’s one heck of a pilot
-Trim or remove the balcony scene (this will be the hardest part of making the edit PG imho)
-Trim Kylo punching his wound and blood
-Triim Finn and Kylo duel