I need somebody that can promote my GoFundMe Campaign, as well as sales of my newly published book

My husband and I are in need of 24 hour care, and nobody will help us, so we are trying to raise the money ourselves. We started a GoFundMe Campaign a few days ago, and we also just published a novel. We need somebody that will be able to help us get the publicity we need to make the money we need to survive. Ideally, this person would be willing to work for a percentage of our profits, but we are willing to consider other options.