I have a tool that was labeled Japanese Weeder. It has a very sharp offset triangle head that is sharply angled so that it skims just below soil surface. It comes in right and left-handed models so that the longer offset is towards your thumb.
It's great tool for working close. ... And I mean really close, like slipping that sharp point between the weed and vegetable plant and giving a quick tug.
I think I'd like to get an action/stirrup hoe for long handled standing work. looking around, there seems to be two widths available, and some are designed with replaceale/replacement blades.
I also like using my Japanese hand sickle. This spring, I finally bought a European scythe. It was available in a set with a sharpening stone with watertight clip on plastic holster. It's great because I can just half fill the holster with water and whip the wet stone out to sharpen the Weeder, sickle, and scythe as neede, though I still occasionally use a handy stone if I forget the holstered sharpening stone..