Those quests are certainly the best method to earn Pirate Coins Lost Ark Gold, but once you've done them all (which will take quite a long time), you're probably going to be forced to use Marine events for your Pirate Coin needs.
Marine events are frequently scheduled in-game activities that require you to perform various tasks (the most lucrative ones are Ghost Ships). In the event of completing them, (and other activities that can be found throughout the game) will sometimes reward players with unique Voyage Coins that can be traded to Pirate Coins at the following exchange rates. In short generally, you'll be able to earn some extra Pirate Coins by completing certain marine-related tasks. However, if you're interested in getting as many coins as you can as fast as you possibly can, you'll need to be able to maximize your time.
Although it's unlikely to count as "farming" according to the standard MMO sense of the word it is a good idea to finish the most Island Quests possible in order to maximize your Pirate Coin earnings potential. There is nothing like Island Quests in terms of the quickest and easiest way to earn the most Pirate Coins as possible.On that issue, be sure to keep an eye open for the beginning on the first day of Procyon's Compass eventthat rewards players with bonus Pirate Coins for completing special tasks that are related to Field Bosses Ghost Ships, Chaos Gate activities or Island Quests. It's worth making a way to join in the event whenever it is available to you.
In addition, the best bet for earning Pirate Coins is to complete Marine Events whenever they appear and as fast as you can. They're the best source for Pirate Coins once the Islands Quest well has run dry Lost Ark Gold for sale. Similar to Una's tasks: both daily and weekly events which often reward you with quite plenty of precious Pirate Coins. Much like Procyon's Compass and taking advantage of these opportunities involves planning you timetable in a way that lets you take advantage of them the earliest time possible.