There are several different ways to make gold in the game, and the best of them are tied to selling items. While you can always sell items in person, the easiest way is by putting them up for sale on a Guild Trader. Searching what other players sell is also a nice way to know what is valuable and what is not. Below are the best ways to get money on ESO:
Stealing
Stealing is always a fun way...
English 
Arabic
French
Spanish
Portuguese
Deutsch
Turkish
Dutch
Italiano
Russian
Romaian
Portuguese (Brazil)
Greek