Hello there,
It's great that you're interested in selling digital products! There are a few options for selling these types of products online. First, you could consider using an online marketplace like Shopify, Amazon, eBay, or Etsy. But most popular is shopify store and etsy shop. These marketplaces are popular and well-established, so they could be a good option for reaching a wide audience. However, keep in mind that there are fees associated with selling on these platforms.
Another option is to create your own website or online store using a platform like Shopify store. This can give you more control over your store and branding.