I believe it is not good to start spending money without making money first. That’s why I avoid platform where I need to pay before I can make money. Etsy is a good option to sell online but I prefer Redbubble because on RedBubble I can sell without paying anything upfront. I have to pay when my product sells. FBA is a good program to sell on Amazon but you need to pay subscription fees, so I chose Merch By Amazon instead (a free program).