Just copy and paste the following list in a text file, save it and then import it in TradingView.
COINBASE:1INCHBTC
COINBASE:AAVEBTC
COINBASE:ADABTC
COINBASE:ALGOBTC
COINBASE:ANKRBTC
COINBASE:ATOMBTC
COINBASE:AVAXBTC
COINBASE:AXSBTC
COINBASE:BALBTC
COINBASE:BATBTC
COINBASE:BCHBTC
COINBASE:CGLDBTC
COINBASE:COMPBTC
COINBASE:CRVBTC
COINBASE:DASHBTC
COINBASE:DOGEBTC
COINBASE:DOTBTC
COINBASE:EOSBTC
COINBASE:ETCBTC
COINBASE:ETHBTC
COINBASE:FILBTC
COINBASE:GRTBTC
COINBASE:ICPBTC
COINBASE:LINKBTC
COINBASE:LRCBTC
COINBASE:LTCBTC
COINBASE:MANABTC
COINBASE:MATICBTC
COINBASE:MKRBTC
COINBASE:SNXBTC
COINBASE:SOLBTC
COINBASE:UNIBTC
COINBASE:WBTCBTC
COINBASE:XLMBTC
COINBASE:XTZBTC
COINBASE:YFIBTC
COINBASE:ZECBTC