I would like to add https://handmadeartists.com
to the list. Handmade only however, no mass produced items allowed. Also no unaltered vintage, or mass produced supplies allowed. The idea is to give handmade a place to shine on it's own. The site has been open for a few years now. It has been a slow and steady build but many artists are flocking there trying to get away from all the mass produced resellers out there. The site is very family friendly and the forums are helpful and friendly as well.
So check it out, only $5.00 a month to sell, no listing fees, and no commissions charged.