perhaps try to grab the head of the bolt and twist it down and out of the pan , then tap for a larger thread or whatever you have to do .
I am going to try something:
THIS IS AN OLD THREAD AND NO LONGER USEFUL . LEAVE IT ALONE TO DIE A PEACEFUL DEATH!!
This isn’t the last stripped drain plug in the world, people search and read these threads every day.
Using a slide hammer to remove a steel drain plug from a steel oil pan will ensure the oil pan gets replaced, there is 1/4" of threaded drain plug beyond the oil pan nut, the drain plug won’t pull out without a fight.