OGA Pixel Art Tutorial parts 1 & 2: Choosing a pixel editor, and configuring your Krita workspace for Krita art.
Spoiler: My favorite program from Part 1 is Krita, although I cover a number of editors, and you don't need to be using Krita to follow along with later videos. You can safely skip the second video if you're not interested in Krita, although I'd recommend checking it out. :)
Tutorial forum threads: