Reusable pads can be purchased online. Just like cups there are many different brands. Read the reviews and do your research to purchase the best set for yourself. I recommend having at least 3-6 reusable pads on hand for your cycle.
You can also make your own at home by using this tutorial: https://www.permacrafters.com/how-to-make-reusable-menstrual-pads/
