I recommend that you follow not only the major pairs, such as the dollar-euro. Although I do not argue, you can make good money on fluctuations in the quotes of these currencies. But there are also cross currency pairs https://fbs.eu/en/analytics/guidebooks/currency-pairs-base-and-quote-currencies-majors-and-crosses-15 These are pairs that do not include the US dollar , but include at least one of the other three major world currencies. And they also provide good prospects.