Certain classes excel more than the others. For example, a Druid can farm herbs while in flying form, mages can solo-farm Caverns of Time: Dark Portal trash. If you are keen on playing with two accounts, Protection Paladin + Mage can excel at farming Black Temple terrace mobs as it can land you 300-500 TBC Classic Gold each hour approximately.
Plan Your Professions
Professions are receiving overhaul in WoW TBC Classic. Some are better than others for gold farming, but the traditional mining and herb gathering will always make you plenty. However, with Jewelcrafting being new to TBC, it is the real deal for gold farming.
Playing the Auction House
The name of the game here is to buy low, sell high. Instead of spending an hour on dailies, I spend an hour combing the auction house looking for things that are a fair bit cheaper then the average. You really need to have a feel for what things actually cost for this to work. You need to be looking through the Auction House every day and know what is worth what. This section is kind of general and kind of has to be as I can’t really go over the prices of every item for every server. I can provide a couple universal tips though:
Don’t nickel and dime. It isn’t worth it to buy something and then resell it for a gold more. You will hardly make any profit after the Auction House cut and if it doesn’t sell the first time you may lose money on the deposit. I usually shoot for at least 15g profits.
Check items such as Primals, Shards, Void Crystals, Gems etc and familiarize yourself with their prices. Look for people who undercut by a lot, buy those items and relist at the standard price.
Check things like boe blues/epics, Darkmoon Faire cards, ect. You can usually make a hefty profit on things like these when somebody underprices the item. These kinds of items price can fluctuate all across the board. Meaning I can buy an Apexis Crystal Mace for 40g and then turn around and sell it for 150g. The key thing to remember is there isn’t really a set market price for these items, YOU pretty much decide the market price when you post them (unless there are several on the AH at once, of course).
Undercutting. You definitely want to undercut people. But you have to be smart about it. Things like gems and shards are not things that people are going to go without. If there is one gem on the auction house, unless the price is outrageous, if a person needs it they will buy it. Nobody goes without gems or enchants in their gear because it is too expensive. So the key is to undercut a tiny bit. You can usually undercut by 5 silver and your item will sell just as fast as if you undercut by 5 gold. So do the market and yourself a favor and don’t make big undercuts as they don’t help anybody (except for the person buying of course!).
Don’t use Auctioneer. A mod can not really see the fluctuations in the market like a person can. It constantly undercuts too much and generally wastes your time/memory. You aren’t saving yourself any time by spending 20 minutes scanning and then having it do it automatically. Search the item that you are going to sell and relist it a tiny bit under the lowest price.
Finally, buy WoW TBC Gold from websites like https://www.igvault.com/WoW-Classic-TBC-Gold . The number of people who still buys gold is really high.