Id fly on one. As long as they gave me a parachute.
The problem is that at a certain altitude for that to work. IIRC, All the problems occurred when the plane was too close to the ground to correct for the problem.
Instead of a parachute, perhaps a prayer shawl and a Bible might be better safety equipment.
I flew on one in mid April, several months after they were supposedly grounded. I would fly them any time. They're a great airplane, much roomier and comfortable than the alternatives. A that time, Southwest had over 31,000 successful flights with the Max 8. You were still safer in the air than on an automobile trip to the airport.
Besides that, a parachute wouldn't do you any good. The crashes were caused by ill trained pilots at take off. There was no time to put on your parachute, and no way to get out of the airplane. Even if you could, you would likely get hit by the wing or the tail after you jumped out.
Wouldn't do you much good. No way to egress the 737 while in flight and pressurized.
That's why DB Cooper chose the 727. The rear air stairs can be lowered in flight.
I'd fly on one today. As long as the flight crew are properly trained.