I have already read Ultron 1-10 and am now looking at getting tie-ins before i start the epilogue and just wanted to know what order I should look at them in! Thanks in advance! I have found this so far but would like a completion!:
1. Age of Ultron #1
2. Age of Ultron #2
3. Fantastic Four #5AU
4. Superior Spiderman #6AU
5. Age of Ultron #3
Uncanny Avengers and Fearless Defenders don't come directly after Age of Ultron #6, I'd say they are more important to their own series than to the event, as they mostly focus on some aspects of what was being continued in their respective series (like Uriel and Eimin's plans for Uncanny Avengers, and Caroline le Fay's origin for Fearless Defenders).
And the Defenders of the Age of Le Fay time-line are the ones who appeared in Age of Ultron, I'd say, These ones (which are still mostly like Avengers).