So, from what I've seen, the SS seems to be a potentially interesting character. I'm looking for stories that

1. capture the "essence" of the character, gives me a good feel for what they're about, and

2. Serve as a good 'starting' point. I'm not going to start reading all the way back from the 1960's to now. I'm looking for kind of the equivalent to what Extremis was for Tony Stark - a good, not too far back point, that I can jump in without being too overwhelmed with continuity, and read forward from.

In case it's not clear, I'm expecting these two questions to have different answers. That's completely fine. I just want something I can read to know if I want to read more, and not have to read 50-odd years of stuff to get what's happening now.