One method is to propose a trade with an AI opponent, offering a strategic or luxury resource along with as much gold per turn as you can, then select the 'What will you give me for this?' option. It should be noted that these Civilization 6 cheats have almost certainly been nerfed by subsequent updates, so if you want to use these methods then ensure you are playing the original unpatched version of the game. Canny players have discovered several potential Civilization 6 trading glitches, which can be exploited to make big gains in gold and resources.
