I was going to drop Blindspot once I reached the end of the first season, but ended up sticking through the end of the second reason, which I kind of regret.

I don't regret dropping Quantico early in the second season.

On Netflix, I loved Stranger Things, and on HBO, really enjoyed Westworld, and rewatched the episodes while introducing the series to my wife. I think yet another rewatch might still be enjoyable, because I started rewatching the first episode yet again and noticed more things I had overlooked.