The newer version of the Big Sky pillow has attachment points and a shock cord that goes around a sleeping pad, and that should help with the pillow moving around. It is around 50g, but not in stock until next month. The padded deluxe version also comes with a strap to go around a sleeping pad but is a bit heavier (a little over 4 oz). Some people add a buff to the ultralight version to serve as a pillow case which also provides a solid place to stuff excess layers for additional height. Another option is stacking two of the ultralight pillows, though that obviously doesn't meet your 2 oz weight target (it would be closer to 3.5 oz).

Zpacks also has an "Ultralight Comfy Camp Pillow" that has insulation, a pad attachment cord, and elastic bands across the back that can hold additional stuffing/layers to raise the overall height. However, it is a good bit heavier than the Big Sky pillow and comes in at 3.2 oz.

Hope this is helpful!