Checked out Amazon, yes they have narrow draw hoes and variations upon that theme.
Cannot weed between close planted specimens with those: it will damage the roots.
Did not find any narrow Dutch hoes there though.
Something called a flower hoe listed. Described as narrow, but blade which is heart-shaped, is at its widest portion same as conventional hoe.
Also something called a potato hoe. That is close, is sharp, and is narrow. However, since it is primarily intended for earthing up spuds, blade is directly in line with handle. It would not be easy to skim ground surface to chop weeds, which is what I am looking for in a narrow Dutch hoe.
Think I am going to have to import one from Germany.