Easy, secure, low-cost to trade crypto. Coinbase just provide services in certain countries. Who can name some . Thank you
Even though that top-tier exchanges are not perfect at all, I would recommend Binance for trading Bitcoin. This is the most popular cryptocurrency exchange in the world, and I have met him twice last year. So far, this is the undisputed exchange in terms of users, liquidity and trading volume (and of course, giveaway events).