Hello, https://mmoauctions.com is rapidly evolving platform which has been created with a view to gather players from whole world in one place to provide you a place where you can buy/sell/trade your accounts and other goods like currency or boosting.
You can also find there a lot of guides in popular moba and mmorpg games like League of Legends, World of Warcraft and much more.

In FFXIV, the virtual in-game currency is called Final Fantasy 14 Gil, which does give you a large of amount of help, such as buying equipment, food and potion.