In case this link doesn't work:
https://search.ebay.de/search/search.dll ... 26fsoo%3D2then go to
www.ebay.de and do a search for "chrom türgriffe renault". You should get results to door handle covers in polished stainless steel. I've a set of those installed and have only good things to say about them. The fit is very good plus you don't need to take your doors apart, just stick the covers on. They come with double-sided tape ready to stick on, but for an even better fit I removed the tape and used some Sikaflex mastic instead.
But if it's the original Dynamique matte chrome finish you're after then get an original Renault door handle set, those quite often turn up on eBay, too.
(Or, for a matte finish (if you don't wish to take your doors apart), you could wet-sand the polished s/s covers, although that might make all dirt stick on them readily?)