If you've ever played Dungeons or Dragons or taken part in any multiplayer fantasy RPGs, then you should be familiar with the typical Tank, DPS, Support, and Healer lineup. Although Skyrim is a single-player RPG, and generally, you can only be accompanied by one follower, this rule applies. As a mage, you'll want warrior followers, like Mjolll The Lioness, as they can keep enemies from reaching you while you deal damage from range. Brelyna Maryon is a great mage follower due to her high Conjuration skill level. She will frequently summon Atronachs to battle alongside you, allowing both you and Brelyna space to put in damage. J'zhargo wants nothing more than to be the strongest Destruction mage in all of Skyrim. He's great as a follower; if playing a Breton, he will cause mayhem on the battlefield dealing significant damage from Destruction Magic.