Connecticut: Here's AccessHealthCT's OE6 Enrollment Report
This was actually released a month ago, but I was a bit preoccupied with my kid's Bar Mitzvah at the time (he did great, by the way, thanks for asking!).
Access Health CT, Connecticut's state-based ACA exchange, released their 2019 Open Enrollment Period report, and it's one of the most extensively detailed & granual looks at the year's enrollment data. They've included the normal stuff, of course (subsidized vs. unsubsidized, metal levels, age and income brackets, etc)...but they've also done a very deep dive into data points I haven't seen before by cross-indexing categories.
For instance, not only did they break out "enrollment attrition reasons" (that is, why 2018 enrollees who didn't renew their policies chose not to), but they actually broke that out into what those enrollees' financial assistance status was.
The level of detail here is pretty impressive and somewhat overwhelming (there's 25 pages of charts & graphs), but if you're a healthcare nerd interested in what's going on in the Nutmeg State, knock yourself out!