At least on some hot-forged cranks like 600 Arabesque, I've taken the 18" adjustable wrench and just torqued on the pedal eye after diagnosing the direction of the bend and twist that I was dealing with.
It was easy to get things feeling normal, though I can't say how straight it really ends up.

If you ride the one bike with a bent crank long enough, it will eventually feel 100% normal.

Sometimes it's just the pedal spindle that is bent (note any wobble while the spindle is being threaded in and out).

At my weight, I wouldn't fear giving the 18" wrench a modest tug on a forged arm, as there is always some "recovery" stress-relieving that occurs initially at relatively low force levels.