Medium-of-Exchange Cryptos are those that can be used to buy and sell stuff (physical or virtual) or which can quickly be converted to "cash". The top six cryptocurrencies leading this category are Bitcoin, Bitcoin Cash, Dash, Litecoin, Monero, and ZCash respectively.

source https://gadgets.ndtv.com/cryptocurrency/opinion/medium-of-exchange-crypto-bitcoin-dash-litecoin-zcash-2736034#rss-gadgets-all