I am a big fan of NYX eye shadows and I recently got two of the 10 colour palettes from their Runway Collection. I got "Caviar & Bubbles" and "Catwalk" and have more or less used them every day since getting them, as I absolutely love them and as I am a big lover of neutral colours these two were right up my alley. NYX is a fairly inexpensive brand, unfortunateley not available in store here in DK so I have bought all my stuff on Amazon. Like the other NYX shadows I have, these just have such good staying power, good pigmentation, are super blendable and the packaging is extremely travel-friendly which is always a plus. I will say that they work best with primer and that the matt colours do have a bit of fallout, but I always use primer anyway and if you remember to tap your brush before applying the colour these are issues not really worth mentioning :)
Caviar & Bubbles has a good variety of greys, beige and campagne shimmer and matt shades and provides endless options for neutral looks, which is perfect for me, plus I just love the name of this palette!
Catwalk also has a good variety of matt and shimmer colours, but the look is more bronz, burnt and warm, but still fairly neutral.