Hi, thanks for asking!
When trading currencies in Forex, you can opt to trade in major currencies, minor and exotic ones. All of them offer specific benefits and carry risks that you should be aware of.
Major currencies, or the so-called majors, are combinations of major currencies traded in Forex, and these are EUR/USD, USD/JPY, GBP/USD, AUD/USD, NZD/USD, USD/CHF, USD/CAD. And all of them together combine for around 70% in overall currencies traded in Forex. The best and most profitable pair being EUR/USD which has the lowest spread, highest volume of trade, and highest popularity.
The benefits of trading this pair is that there is high transparency connected to these two currencies, as the trades and economic endeavors of the European Union and the United States are the most transparent and because of this, it is easier to predict their future trends. As being the most popular pair, this means that these currencies are also characterized by high liquidity which means they are easy to offload.
In Asia, the most popular pair is the pair of the U.S. dollar and Japanese yen (USD/JPY), which has high liquidity on the Asian market and high volatility.