Red,

Well, a balun at the antenna side of the tuner is what most people would do.
Unless you use a link coupled or double balanced tuner, there really isn't much
else of an alternative. 1:1, 2:1, 4:1, 9:1 or what? Well, you're going to see
quite large impedance changes based upon what antenna you use and what bands
you operate. You'll likely get a good match on some bands and not so good on
other bands. I'd recommend a 4:1 balun as a compromise.

And don't forget those HF swap nets.

Best of luck and 73s,

Evan, K9SQG