Start for free. They have a lot of things you can sell - not just tshirts and mugs.
Printify eCommerce Print-On-Demand Goods
I used MailChimp before it was sold to a larger company. Then, I found this Moosend. Jump in at their Free Trial tier and then just pay as you grow. The free tier will get you a long way when you're just starting out.
MooSend Email Marketing
A great way to build your email list by offering free and paid-for products. No listing fees. Just clear transparent costs as posted on their site, taken out only when you make a paid-for product sale.
Gumroad
This one allows you 5 free flipbooks to start right away. But even their Standard & Premium subscription pricing is very reasonable.
Heyzine - Make A PDF In To An Online Flipbook
A must-have for when you need the easy button relief on creators block
Creative Fabrica - Your number #1 source for premium design elements
Tons to do in free version but it is so worth the paid pro subscription. I have not been able to justify not having it. Love it for it's easy to use interface on desktop and most importantly on my iPad & iPhone.
