Can I infer from your avatar that you're in Sweden? Assuming that you are, the links are all to Ag Photographic in the UK, who are great!

Regular prints - you need the RA4 process chemistry, specifically Kodak Developer, Replenisher:

Paper - this is more fluid as we're in the middle of a major discontinuance of Kodak Supra Endura.

Get it while you can, there's not much left:

Or try Fuji Crystal Archive:

I'm not aware of any other cut papers.