I use the ulta brow powder set and I am very happy with it. I tried brow pencils but they always looked fake and drawn in, but the powders are much more subtle. The powders are nice because they generally come with a couple colors and you decide how much to put on, which makes blending colors to find a match easy. I think brow powders are great if you already have full brows you want to define a little bit without drawing them in

I'm a loyalist to Anastasia Brow Wiz pencil now, but before that I actually used to use a Nyx eyeshadow single. That actually used to go on quite well and stay on too. I don't know what your hair color is, but for dark Brunettes it worked.

I give my brows the least amount of attention, I really ought to step up game and give them some love too... haha :)