The 3 recommended classes are Templar, Warden, and Dragonknight because these are more forgiving and less punishing than the other classes such as Nightblade and Sorcerer. Please click Youtuber Rubensky’s video for more details of the top 3 beginner classes for ESO, and he is the original author of this guide:
Dragonknight is a Class in Elder Scrolls Online. These skillful masters-at-arms use the ancient Akaviri martial arts tradition of battle-spirit, and wield fearsome magic that pounds, shatters and physically alters the world around them. Dragon Knights can specialize on three distinctive class skills. The player is free to focus on one line or distribute points across many, allowing for deep build customization.
Due to his disposition to fight over a short distance, Dragonknight is perfect as a tank in the Elder Scrolls Online, i.e. the one that gets the whipping for the entire party. What is especially useful, in this case, are the abilities from the Dragonic Power and Earthen Heart trees - Ardent Flame is centered, rather, around a solo play, if you want to deal as high damage as possible.