Painting Question

Not sure where this is covered, Im sure it is somewhere, but I couldn't find it in the repair forum so....
Rookie here, I have figures from G1 that have chipped paint on the metal parts (prowl and red alert). I was wondering if there was a good paint to use to repaint the metal parts, if I sand a prime it first, brush paint/spray? If there is an easy to find forum that I am somehow missing that would be great. If not, if anyone has any suggestions, it would be greatly appreciated.
Rookie here, I have figures from G1 that have chipped paint on the metal parts (prowl and red alert). I was wondering if there was a good paint to use to repaint the metal parts, if I sand a prime it first, brush paint/spray? If there is an easy to find forum that I am somehow missing that would be great. If not, if anyone has any suggestions, it would be greatly appreciated.