I have a towbar I made in high school, it has been on many model As, most will follow nicely, some want to shimmy, and a few will want to flop to steering lock, the ones that flop need the wheel tied.
The towbar I made fits to the bumper brackets ( the bumper is removed), it was made of 1" square steel, and the flat plate for mounting it has many holes to fit other cars now.
It has only been used to tow "dead" cars, I have not used it in the last 20 years, a stock model A is very reliable.
When I towed I would block the clutch down, but leave it in neutral, that way all the gears could move some and lube each other.