Easy, secure, low-cost to trade crypto. Coinbase just provide services in certain countries. Who can name some . Thank you
Those three adjectives that you used make up an ideal exchange and that like all other ideal things, don't exist in real but only in dreams. What you need to check is whether the exchanges that your local community used have good acceptance an low number of legit complaints. Then you have to try them out yourself and see which one is working with your needs. What works for one might not work for you.
Also customer support is one of the biggest things to check. Fees for trading will be there, you cannot find one which has very low fees. But still you have screen the options yourself.
Again remeber that complaints are not always legit. Many people attempt to use an exchange to launder money, get blocked and then complain about the site being scam. Ignore these.
Not necessarily binance or bittrex, but any exchange can work out for you. Follow the advice of the users above and mine.