Big cartel! :O Its free to start a big cartel, and they make it pretty easy. You just have to sign up, really. The free plan on it only lets you have 5 items, which is pretty good for beginners too, but if you end up wanting/having more products, it’d be about 10$ a month (which aint too bad imo!)

When I first started, I used etsy, though, which I think is really good for people who are just starting out because of the marketplace function! so i always kinda recommend starting there… though their fees are pretty high.