: Note that changing the interface language (menus and HUD) often requires the launcher-level change mentioned above, as it is not always switchable inside the game menu. Fixes for Region-Locked or Missing Audio

As the English language is the default language for Far Cry 5, there's no "best" English language pack to download. The game should already have English language support built-in.

Language selection :: Far Cry 5 綜合討論 - Steam Community

The random conversations between Peggies, the panicked shouts of civilians, and the radio broadcasts from the cult are carefully layered in the English mix. Dubbed versions sometimes leave these as quiet afterthoughts or replace them with generic sound loops. The English pack restores the intended chaotic soundscape of Hope County.

Farcry 5 Region Language Lock :: Help and Tips - Steam Community

You're looking for information on the English language pack for Far Cry 5. Here are some details: