If plan on baking bread a lot, you might even invest in a Challenger Bread Pan.
Bake bread, of course! To bake with starter, you'll want it to be active. When I want to bake, I usually take my starter out of the fridge the night before, feed it, and check on it in the morning. If it's bubbling madly, I can use it to bake. If not, I feed it again and wait a couple hours. There are all kinds of sourdough recipes out there, but for your first loaf, try something low-lift, like this No-Knead Sourdough Bread. You don't need special equipment. It helps to have a Dutch oven, but if you don't, I've also made loaves in stockpots and on super-hot baking sheets. If plan on baking bread a lot, you might even invest in a Challenger Bread Pan. Whatever gear you have will probably make bread! It might not be perfect bakery bread but who cares, as long as it's delicious. Once you get in the habit, you'll be making beautiful country boules at your leisure. Maybe you'll get super into freshly milled flours! Who knows!