Two or three visits ago I bought one ShinHan marker.
I liked it.
When I returned months later, I bought six, all dark colours.
ShinHan is a Korean art supplier and/or manufacturer who appears to carry a great number of art supplies, but thus far I've only seen their markers.
They compare favourably to Copic markers, have a slightly less potent smell and best of all they are less expensive, and lighter weight, making them easier to carry.