In the Elder Scrolls Online, there’s actually a couple of different currencies that the game uses. (Faction/alliance points, gold, etc.) ESO’s main currency [gold] has many uses to the player and is not just used for straight up trading between players. It has a couple of different applications, such as Auction House trading, Wayshire/fast traveling or even bribing NPCs for quest related information or getting past the guards at a city you want entrance too!
Crafting is a staple in MMOs and also a staple for SEO. The main money makers from crafting are Armor/Weaponsmithing, Alchemy and Enchanting. Smithing is mostly focused on Armor or Weapon creation but it might be a little hard for a newer player to get off the ground. You will want to choose either Nord, Reguard or Orc for the racial bonus. Alchemy is for making potions mostly (Applicable especially for end-game content). Enchanting gives bonuses and improves almost everything on the player, which includes potions, gear and more. Enchanting is definitely going to be a staple craftsmanship due to its ability to increase the strength and rarity of items. (Which can be sold to other players or NPCs)
The Thieve’s Guild is a very popular choice because it allows the player to make a quick buck. If you chose a race that has bonuses to stealth, such as any of the Elven races, it’ll help quite a bit. Unlike Skyrim, you can sell stolen goods to NPC vendors, but you need a special perk (Being a Nightblade will help!). The other option for getting rid of stolen goods is to fence it, but the fence takes a cut. While the Thieve’s Guild is more suited for the Nightblade class, anyone can do it.
Last but not least, grinding is the easiest way to make safe eso gold. Simply run up to an enemy, give ’em the ol’ one-two, then loot their corpse! Look for popular rare materials in high demand, kill enemies that drop that item or are near where you can harvest said item. Instanced dungeons are also good for getting key important drops you couldn’t get alone, plus, you get to hang out with other people. In some dungeons, there are harvest-able items as well, so keep your eye out.