It is very difficult to say which is the best broker for you since many things need to be considered while choosing a broker which is one of the most vital parts of forex trading and to make profit in forex. You can't trade in the same way and same trading strategy in the same broker when you are trading a few hundred dollars vs few million dollars. It makes a huge difference. For smaller account trading there are a handful of regulated good brokers which you can choose. But for larger account trading with big money institutional brokers should be chosen. A good adviser like AtoZ Markets can help you to choose the best broker from the market. They provide broker reviews which can help you to compare many brokers and select the best one for you.