Hi! Offering online classes on Fiverr is pretty simple. You'll need to create an account and provide some personal data. Then you'll build your profile and include information about your skills and experience. Make sure you'll add enough info about the topic you'll cover and the format of the classes. It's crucial to respect all the laws regarding online teaching and data protection. Additionally, you should make sure to have a good internet connection and equipment to provide a high-quality service. Good luck! Btw, some months ago I also considered becoming an online tutor on Fiverr. However, the guys from aquinaseducation.co.uk found for me a vacant position at a primary school. So, I gave up on that idea.