If you want to go far beyond the most popular coins, Binance is your best option. International accounts may take days to become verified. Most coins have deep markets, making Binance ideal for both big and small buyers and traders. Usually, as small as key-chain USB drives, these wallets offer an offline way to help crypto investors protect their bitcoin even further. Their randomness means that consecutive losses should be anticipated and guarded against through proper position sizing. Buyers will have to check the orderbook to see what payment methods are available. Bitfinex is a popular exchange because in terms of USD trading volume it has the most liquidity.