Binance - Cryptocurrencies exchange platform
Coinbase - Bitcoin, safe and easy.
Robinhood - Free stock trading service.
Satoshi Tango - This is a good exchange if you are outside of the area supported by Coinbase, such as South American countries, especially Argentina.
Exodus.io - All-in-one app to secure, manage and exchange blockchain assets.
Kraken - One of the largest and oldest Bitcoin exchanges in the world, Kraken is consistently named one of the best places to buy and sell crypto online, thanks to our excellent service, low fees, versatile funding options and rigorous security standards