There is no definitive answer to this question as it largely depends on personal preferences. However, some of the most popular crypto exchanges that offer a wide variety of altcoins include Binance, KuCoin, and Coinbase Pro.
Other related questions:
Q: Which crypto exchange has all coins?
A: There is no single exchange that offers all coins, but there are a few that come close. Binance, for example, offers a wide variety of coins, including many of the major ones.
Q: Which exchange has the most listed coins?
A: There is no definitive answer to this question, as it can vary depending on the criteria used. However, according to CoinMarketCap.com, as of June 2018, the exchange with the most listed coins is Binance, with over 500 different coins listed.
Q: How many altcoins are on Binance?
A: As of September 2019, there are over 150 altcoins listed on Binance.
Q: Where is the best place to buy altcoins?
A: There is no one-size-fits-all answer to this question, as the best place to buy altcoins depends on a variety of factors, including your location, desired coin, and preferred payment method. However, some popular exchanges for buying altcoins include Bittrex, Poloniex, and Shapeshift.