I'll give you the same advice I give all newbies - do not buy tie in issues/series. They are for the most part just cash grabs. I never read any of them for Original Sin and I didn't feel the need for them at all. The same goes for pretty much every event I can think of.
Also FYI, event books like Original Sin are often not the best comics (although I really enjoyed OS myself, many didn't). IMO you'd be far better off reading a more self contained series that is it's own thing. For me, The current Avengers run is a fantastic event book that is much more self contained and coherent.
And of course, all just my opinion and I definitely spent the first few years if my comics career only reading big event books. Bit I was also a super easily impressed kid![]()
Yea I have heard that the events are generally poor. I just wanted to quickly read through them so I have an overall idea what is going on in the MU. I have an Unlimited subscription so it's no big deal hammering them out.
Thanks for the advice on the current Avengers run though, will get on that.