To enter the market, click on the market icon on bottom right.
There are lots of precious items in the market; players can find lots of items there.
Category given on left side, let players easier to search their need.
But in market contain both consumer and merchandiser. So players can earn some in market.
Click the coin on right will enter to a new tab.
Just click the “+” or one-tap for sale then players can sell their unwanted items in market.
So if you need to sell something else then you need pay the fees to market first but on risk because not 100% success in sales. Good luck.