There are numerous online business ideas to consider in 2021, and the best one for you will depend on your interests, skills, and resources. Some popular options include starting a blog, selling products through e-commerce platforms like Shopify, offering services as a freelancer, creating and selling online courses, and dropshipping. Other ideas include becoming a voiceover artist, starting a digital marketing agency, offering wellness services, and developing mobile apps. It's important to research and carefully evaluate each option to determine which one aligns with your goals and offers the greatest potential for success. Additionally, starting an online business requires dedication, hard work, and a willingness to learn and adapt as you go.