My Dad had me read the Owners Manual of his new 1970 Toyota HiLux P/U. I was 12 when he taught me how to drive a manual transmission and back up a trailer. The diagram of the rotation was, spare to right rear, right rear to left front, left front to right front, right front to left rear and left rear to spare. I've done it like this ever since.
On a trailer with a single axle, it was, spare to right, right to left and left to spare.
And on a tandem axle trailer, it would be the 5 tire rotation.
Knock on wood that I've never (so far) have had a trailer tire blow out on the highway but, I've replaced some pretty wicked side bulges in my time. And most of those have been on the left side of the trailers.