Not a right lot you can do if you dont want to paint. Just did the worst of mine with a rattle can color applied with a toothpick, (rattle can better that touch up cos it is thinner) mix it with some lacquer and dab on with tooth pick or similar. Let it dry apply more if needed to fill chip. If any paint is proud carefully drag a razor blade over it to scrap back to flush. (Lightly drag blade do NOT push as it will cut into paint.)
Or hole punch some 2000 wet and dry the stick the punched circle on the end of a pencil with an eraser and you have a very point specific chip sander.
Polish with farclia G10 or similar to remove sanding or razor marks then normal cleaning wax etc.
The repair is in not invisible but is is pretty good .
My rear arches, bonnet, and doors were pepperd so i just did the worst and it looks much better.