I bought some corned beef, but haven't tried it yet. I need to look around for other canned meat options.
I gave the Kirkland canned chunk chicken breast at Costco a try a few months back, and that stuff is awesome for chicken tacos. I ended up adding three six packs to the larder rotation (use one, keep two in reserve, rotate). I might actually add a couple more six packs, as I use it a good bit, and I just checked and the "best by" date on my most current pack is FEB, 2027, so they should be ok for a good bit beyond that.
I'm sure there are other brands of it equally as good.