I have accounts on multiple freelancing sites but I have made money only on Upwork, SEOClerks, and iWriter. I have managed to sell just few gigs on Fiverr but on Fiverr I am more of a buyer than a seller. These days I am not active on any freelancing platforms. However, I am thinking to start selling through Sproutgigs. This site lacks the earning potential of more professional freelancing sites like Fiverr and Upwork, however, it is also less competitive compared to Fiverr and Upwork.