I've tried three covers so far, and I'm waiting for a fourth. I tried the Amazon cover (works OK, pretty good quality), the ACase cover (has a reading-stand feature that works OK, but uses corner straps, and the elastic is going downhill), the M-Edge (ill-fitting wraparound leather, mediocre quality).
My
new-to-the-market Speck cover by Target has been shipped. The reading stand "leg" is inside the cover when closed, and it supports the Kindle in either portrait or landscape orientation. It uses a plastic clip to hold the K in place.