Usually the EURUSD and GBPUSD pairs are the newbie's favorite pairs, including myself before and now, they are still close friends. to choose the first pair, look at the spread first, choose the smallest spread. Second, look at the news calendar, is the currency in the pair available? In my observations so far, major pairs are always available, such as EUR, GBP, CAD, JPY, CHF, AUD and not to mention USD. The existence of a news calendar makes traders prepare for news releases, which usually cause price fluctuations.