The SnugNiture 3-Pack of Raised Garden Beds is an excellent choice, and it's currently on sale during a Flash deal at Walmart. For a limited time, you can get the set of three for only $86.

The two-pack of Land Guard Galvanized Metal Raised Garden Beds is on sale for just $53 right now at Walmart, but only for a little while. They’re classic, durable, and very easy to assemble.