You can work as an advocate in a few different fields:
Customer advocate
A customer advocate is a little different from some other types of advocates, as it is more like a customer service representative position with some slight differences. Customer advocates have a focus on helping and speaking up for customers. There aren’t usually degree programs related to being a customer advocate, but there are often training programs at companies that have customer advocate roles.
A customer advocate should be empathetic, believable for customers, prepared to criticize your company as needed, trustworthy and aware of how your company’s operations work. You may deal with individual customers and help them get their problems resolved or you might work with groups of customers to make change in your organization. You might study customer behavior and make suggestions for how to make those customers happier.