While I’m not an advocate of selling yourself short or devaluing your worth, there is a time and a place for freelance job sites. These sites are job boards for freelancers and businesses; it is a place to connect, shop around, and, most importantly, get some money into your pocket. While many of these sites may offer smaller payouts, they are a great place to gain experience and build up your portfolio.
A great way to come up with a business idea is to brainstorm about your existing skills. Focus on identifying the skills that are unique to you or that you particularly excel at. Evaluating your previous professional experiences should give you a hint. Think of instances in which you were able to provide value to the organization for which you worked: do you notice any trends?