Obviously, there’s been an incredible amount of information published about the city of Baldur’s Gate (in the Forgotten Realms setting) across the editions and various media like books, sourcebooks, video games, websites, and so on.
What I’d like to know is the list of official 5e material dealing with Baldur’s Gate.
Or, to paraphrase the question, if we’d like to avoid lists:
I’d like to know how I could and should start a new campaign based in Baldur’s Gate if I wanted to keep things as close to 5e canon as possible.
By “official” I mean everything explicitly reviewed and approved by WotC as part of the official FR canon. (Note, please, that DM’s Guild material does not fit the bill, unless it’s explicitly approved.)