I have a fagor duo set which I love. It comes with 2 pots, one of which can be used for canning as well but they are really my go to pots for everything, not only pressure cooking. There are 2 lids, a regular cooking lid and a pressure cooking lid. Highly highly recommended.
I cooked black beans today, soaked for 5 hours, cooked for 10, let steam die down for 15 or so and I have beans
Here is a newer version of mine:
Whatever you do, look for stainless steel.