Which companies sell ONE-year term life insurance? Right now, I have NO interest in anything longer.?

Just about ANY life insurance company will sell you one year term. Obviously, that's the absolute cheapest coverage - but for the most part, the only people who want to buy it, are the ones who think they'll be dead inside a year. The policy is STILL contestable, and it will still be underwritten . . . so whatever the reason that you only need it for one year is, it's probably not going to pay out if you die, in the first year.

No companies do. But you can always cancel a term policy at your will.