I will try ag super resin or the trade version radiant wax. Does a good job of covering it up as it’s a filler polish/mild cutting compound. Just work it in or use a small polisher.
It’s the same with the piano black trim, breath on it and it’s scratched. Doesn’t last forever the filler polishes but will look good for a month or 2.
Try a cutting compound with a light polishing pad.
Then a polish with a finishing pad.
Please note use a dual action polisher and not a rotary.
Very hard to get a decent finish with a rotary on piano black
Its not a permanent fix. You will only get that if you machine polish them & thats not truly permanent
However the piano black trims will ALWAYS mark/scratch not matter what you do with 'em
'Twas the devil himself who created piano black trim on cars lol