how deep are the scratches? if it’s only gone through the clear coat and you can see the colour under it you might be able to polish it (you cant add paint layers back but you can knock down the edges so it’s less noticeable)

if it’s gone past the colour layer then no amount of polish will help and you’ll need to paint it.

I’d personally not settle for those little paint pens they look shit on anything other than stone chips and get it done right.