Why is there something wrong with coinbase? I actually uses coin base but if you’re not happy with coinbase you can use Kucoin or Binance. There are always a risk but if you’re not comfortable with coinbase I suggest you use Binance it is very popular and it has a better security. Binance has lower fees so it has a better outcome. There are so many out there you just need to be mindful and don’t trust easily it’s best if you do a research. Risk is a part of cryptocurrency anyways. You win some and lose some.