The most popular currency pairs to trade are the ones that offer the most liquidity - i.e. the ones that people trade the most.
These include FX majors like AUDUSD, EURUSD, GBPUSD, NZDUSD, USDCAD, USDCHF, and USDJPY. These currency trading pairs are all available to trade completely swap-free at Exness, so you can hold your positions for longer at no extra charge.
Other popular currency pairs that traders like to add to their portfolios are FX minors. These include AUDCAD, CADCHF, EURAUD, GBPCHF, and more. Most FX minors are also available with no overnight charges at Exness.
You can see exactly which minors are included in the swap-free program in the instruments table on this page.