I do not understand why there are so many adoptions towards coinbase; it has high charges and it is not available for every country; you have very low trade cap or hodl cap without doing kyc verification. How then do people enjoy trading on that app ? The best platforms you can trade bitcoin is on cex exchanges such as binance, kucoin etc; you get high trading cap with level 1 verification and it is very easy to get verified too unlike coinbase. Check coinmarketcap for the top 10 exchange to trade bitcoin