I use Pigma Brush drawing pens Sakura Color Products. There are 6-8 colours. Advertised as being "Archival quality ink – chemically stable, waterproof, and fade resistant" I've been using them for about a year so I can't say how true this is.
They've worked, without smearing, on Canson Baryta Photographique and Platine Rag. On matt papers I've continued to use a pencil. The pens are about CDN$4.00 ea.