Some more affordable neutral eyeshadow palettes I recommend are
Maybelline The Nudes Eyeshadow Palette 12$ and comes out June/July so keep an eye out!
Coastal Scents 28 Neutral Palette $19 buy here
NYX Nude on Nude Palette, discontinued in store but you can still find it online for around $18 here!
Physicians Formula Nude Palettes, they have 4 palettes shades (all shimmery shades) for around $12
Sonia Kashuk Eye On Neutral Shimmer (they also make an all matte version) for $20 at Target