Why not e-commerce? If you have initial investment and you want to work online seems like it won't be too difficult for you to start. Of course you'd need to research a lot (as anything you want to work with) but generally speaking you could create your own online store using something like the Shopify platform. It's not too pricey (different packages available starting from around $20), you can create your store there, including the design so that it looks branded, then you can integrate different products from supplier's platforms, add several payment methods, etc. Then you'd need to promote your store, trying to get as much traffic to it as possible - the best traffic source would be Facebook and Instagram (depending on the product).
It's a lot of work, but it's a business that has potential in a long term, and where you can learn a lot.