Hario Slim Mill
The larger Hario Skerton mill has more capacity (about 3 times as much), but if you are brewing for 1 or 2 people, I think the Slim model is ideal. And it costs about the same so pick the one seems to be closest to the amount you usually grind. I would say it is a perfect one or two cup mill; if you make more than that, use the Skerton.