Udemy Currently has Courses Discounted to Just 10$ which are usually worth 499- 600 and you get life time access.
Some of the providers there are
1. Gloabl Training
2. Fitch Learning
Do note that this offer is going to end in 2-3 days tops , I Would go with Fitch Any-day .. 600$ for just 10$ is not allot of money to lose and you may get or learn something out of the way while you already have Schweser or Elan or any other for that matter.