I have a
Noreve cover that I like very much. It holds the Kindle using "rails" so it's very unobtrusive. It's more substantial than the Amazon cover, but not much (if any) larger (the Amazon case won't fit into the box the Noreve came in). They don't seem to be as well known as Oberon (certainly Oberon has a huge fan base), but I wanted something simpler and I loved the clean look of the hinges, and I didn't want to put Velcro on my Kindle to achieve the floating look on the Oberon.