Weird that you can't think of one when I just yesterday told you one.
People ale fixed on plagues to much and cant see an elephant in the room
PS. just use your imagination guys!
Imagine the game where farms mines apart from production, generate raw materials as well
Imagine the game with production chains and new trade resources you can create from raw materials, luxury resources, certain buildings or improvements
Imagine the game where trade resources are obtainable after you fulfill certain conditions, and trade resources provide buffs like +1 science +1 culture +1 housing if are placed in proper slots similar to great works
Imagine the game where every civ has its own unique trade resource
Imagine the game you will have a whole storage and transport system to maintain your production chain. This means a new district and reworked road/transport system
Imagine the game with a certain number of special districts called global commercial hubs, where you can put your trade goods to monopolize them.
Imagine the game where after monopolizing all global commercial hubs you earn a financial victory
Imagine the game where you have various ways to stop your opponent from monopolizing each global commercial hub and your main weapon is a gold income of cities connected to each hub. Larger gold input in certain hub larger amount of products you need to produce and put there.
Imagine the game with brand new features like trade wars, embargos, trade agreements, and resource dependence.
Imagine the game with reworked Civs like the Netherlands and brand new ones well adapted to earn the financial win.
Imagine the game where existing buildings and wonders have trade resources slots
Isn't it more than a trade fixing, and wouldn't it be far more interesting than plagues?