Just a few years ago there was a wide variety of brands and shades of gel blushes to choose from. For some reason they've disappeared from shelves en masse. Brands that have discontinued them include:
I favor gel blushes, particularly the shimmer-free type in squeeze-tube containers, because I think the texture provides a more natural look than other forms such as powders and creams. Also they're not sticky like some cheek stains (Stila, Tarte).
If you're a gel blush fan like me there are still a few options. Origins offers three shades; Bonne Bell offers eight shades (some with shimmer) on their web site but not in US stores.