Answer:
Depending upon which city and country the Agora was in, the merchandise would vary. In Athens the following items would have been found:
meat, fish, live animals
vegetables, fruit, onions and garlic
honey, bread, olives and olive oil
wine, household goods like cooking pots and utensils
clothing, jewelry, furniture
slaves
Think of an Agora as an ancient shopping mall offering both locally made things and imported goods.