Supported cryptos as of December 17, 2018
And here’s a list of what they’re currently looking at as of Dec 7, 2018:
Digital assets that Coinbase is exploring
Towards that end, Coinbase is exploring a broad range of assets which include, in alphabetical order by symbol: Cardano (ADA), Aeternity (AE), Aragon (ANT), Bread Wallet (BRD), Civic (CVC), Dai (DAI), district0x (DNT), EnjinCoin (ENJ), EOS (EOS), Golem Network (GNT), IOST (IOST), Kin (KIN), Kyber Network (KNC), ChainLink (LINK), Loom Network (LOOM), Loopring (LRC), Decentraland (MANA), Mainframe (MFT), Maker (MKR), NEO (NEO), OmiseGo (OMG), Po.et (POE), QuarkChain (QKC), Augur (REP), Request Network (REQ), Status (SNT), Storj (STORJ), Stellar (XLM), XRP (XRP), Tezos (XTZ), and Zilliqa (ZIL).
Rather long list. Might as well say, “anything and everything!”