I saw a World of Warcraft classic leathermaking guide that you will be interested in

Players can study many professions in WoW Classic. The most important item in the Burning Crusade is leather processing. Although the drums that players can make are not as powerful as in the original game, they are still the key to the raid team. The following leathermaking guide will help you a lot, if you are interested.

First tell you the required materials. You may need to put most of the supplies together before starting to grind to level 375. You can do this by peeling it yourself or buying all the leather from the market. Obviously, doing it yourself will take a lot of time, but it's also much cheaper. In addition, you can sell surplus leather for a considerable profit. The following is a rough estimate of all the materials you need:

300 x Light Leather
25 x Medium Hide
10 x Heavy Hide
270 x Heavy Leather
440 x Thick Leather
460 x Rugged Leather
100 x Knothide Leather Scraps
1,400 x Knothide Leather
80 x Thick Clefthoof Leather

First things first, you’ll need to head to one of the major cities and learn apprentice leatherworking from a trainer. Depending on your faction, just head to one of the hub cities (Orgrimmar, Stormwind City, etc.) and find the trainer. As you progress, you’ll need to come back to these trainers to continue progressing. On MMOSO you will find the TBC WOW Classic Gold you want, where you can get a fair price while enjoying thoughtful service.

Once you hit 125, you’ll need to go to either Darnassus (Alliance) or Thunder Bluff (Horde) and reach level 20 to learn expert leatherworking. You’ll need to then hit level 35 and head to either the Hinterlands (Alliance) or Feralas (Horde) to learn artisan leatherworking to level past 200. That said, here is a general guide for getting to level 300.

Light Armor Kit (1 x Light Leather) 1 to 45
Cured Light Hide (1 x Light Hide, 1 x Salt) 45 to 55
Embossed Leather Gloves (3 x Light Leather, 2 x Coarse Thread) 55 to 85
Fine Leather Belt (6 x Light Leather, 2 x Coarse Thread) 85 to 100
Cured Medium Hide (1 x Medium Hide, 1 x Salt) 100 to 120
Fine Leather Belt (6 x Light Leather, 2 x Coarse Thread) 120 to 125
Dark Leather Belt (1x Fine Leather Belt, 1 x Cured Medium Hide, 2 x Fine Thread, 1 x Gray Dye) 125 to 150
Cured Heavy Hide (1 x Heavy Hide, 3 x Salt) 150 to 160
Heavy Armor Kit (5x Heavy Leather, 1 x Fine Thread) 160 to 180
Barbaric Shoulders (8x Heavy Leather, 1 x Cured Heavy Hide, 2 x Fine Thread) 180 to 190
Dusky Bracers (16 x Heavy Leather, 1 x Black Dye, 2 x Silken Thread) 180 to 190
Thick Armor Kit (5x Thick Leather, 1 x Silken Thread) 200 to 205
Nightscape Headband (5 x Thick Leather, 2 x Silken Thread) 205 to 230
Nightscape Pants (14 x Thick Leather, 4 x Silken Thread) 230 to 250
Rugged Armor Kit (5 x Rugged Leather) 250 to 265
Wicked Leather Bracers (8 x Rugged Leather, 1 x Black Dye, 1 x Rune Thread) 265 to 285
Wicked Leather Headband (14 x Rugged Leather, 1 x Black Dye, 1 x Rune Thread) 285 to 300

The Burning Crusade Leatherworking 300 to 375

That should take you to max level and open up everything leatherworking has to offer. Make sure to choose your leatherworking specialization and complete those quests. For Dragonscale leatherworking, head to either Azshara (Alliance) or Badlands (Horde). This specialization gives access to armor that works well for either Elemental Shamans or Hunters. You can Buy TBC WOW Classic Gold on MMOTBC. 

Elemental leatherworkers should head to either Searing Gorge (Alliance) or Arathi Highlands (Horde). Their armor is best for Rogues. Finally, Tribal leatherworkers need to go to Feralas and then Stranglethorn Vale to finish those quests. This armor set is best for either Druids or non-Elemental Shamans.

Of course, players will encounter more or less powerless things in the classic game of World of Warcraft, such as when fighting with players or bosses. In this case, having a good gear can make you stronger and more comfortable. On MMOSO you will find the Cheap TBC WOW Classic Gold you want, where you can get a fair price while enjoying thoughtful service. In this way, you can use very little money to get the gear you want, and the game experience will rise to a higher level.