Gnosis (GNO), the native token of the Gnosis platform, is based on the Ethereum blockchain. The token is paired with other cryptos on several exchanges.
Decentraland (MANA) is currently based on cryptocurrency Ethereum protocol. You can trade this digital asset on the fair number of exchanges. For example, Binance features MANA/BTC currency pair.
Raiden Network Token (RDN) is an Ethereum token and available on the number of exchanges. It’s possible to trade RDN against USD on the Bitfinex platform.