So I've been using a mage build and also want to rp an evil character so I decided to do the Winerhold college questline but none of it gives me an evil options so is there any ideal things or quest to do that would let me use magic of evil?

Short answer? Not really. Then again, the mage's College barely constitues a guild in my opinion, but...

Well, think of them as a means to an end. You may have to play the role of a hero, but in exchange are given ample opportunity to gain a better understanding of magical principles which, in turn, allow you greater malicious use of your spells.

I'm RPing as an evil mage. I set it up so he is only interested in the College to gain more powerful knowledge. Basically, he's using the College to suit his own needs. Not to mention...the rewards don't hurt.

Humm...well for roleplaying purposes make your mage a vampire, use conjuration to raise the dead >
In Dark Brotherhood you'll get a set of awesome looking robes too.

Dark Brotherhood. Thieves Guild.

Daedric Quests.

Plus just pillage, loot, murder....

Like others posted: the other guilds/quests I do to get rewards and grow in power.... often murdering the quest giver if possible after completing the quest.

J