There is more than enough stable coin in the market. And its hard to find all them one by one in the coinmarketcap. There is stable coins like tether , trueUSD, Gemini Dollar, USD coin, Packs standard End many more. The price of the coins depends on which there pegged with. If a coin pegged with USD then the price of a coin will be 1 dollar. If a coin pegged with other any other fiat then the price of the token will be same at the price of the fiat. But in this market most of the coins go with the usd or us dollar.