I highly recommend this pixel art style Lora

It honestly works quite well. Some of the generations have more artifacts than others, but that all requires you to look into how they may appear, the somewhat greyscale ones have more uniformity, and some of the colored ones I made have more artifacts. Not all, but a couple at least. I recommend using this for inspiration etc for anything pixel related. I have yet to experiment with the other generation types as well as other Lora combinations.