The most important thing in starting a profitable online business is to get a business idea that matches your strengths.Whether you want to become an entrepreneur or start a part-time business for passive income, your service should fulfill a consumer need. We’ve compiled a list of profitable online business ideas (models) with minimal startup costs to get started.Dropshipping e-commerce.Ecommerce: selling goods online.Social media influencer.Videographer or photographer.Podcasting.Writer & blogger.Affiliate marketing.Selling services online.