I own a 2000 Malibu which is almost identical to the 2001 model.
You won't find one for these vehicles as they were not very good for off road use. So you will need to find someone to custom make one for you.
A couple of things.
If you start hitting things with your newly installed brush guard you can expect to set off your air bags. These can be expensive to replace.
Make sure the person who designs this for you mounts it to the frame. You will notice that everything except for the radiator core support in front of the engine is plastic. There is one small piece of metal in front of the radiator, the mount for the airbag sensor.