Woot has the sand-color Galaxy Fold 4 Standing Cover (including S-pen) for $14.99.
I have the beige phone so this matches nicely, but will note that I already have the non S-pen standing case, and while it has been durable, the color does start to get a little dingy after a couple of months and it haven’t been able to find a good way to clean it.
https://electronics.woo