I live in LA and want to spend a couple of days in a city I've never been to. Good public transport is big plus but I'll use Lyft if I have to. I like museums, libraries, public parks, historical sites, and I'm kind of a sports bro so I'd like to catch a baseball or soccer game. Probably take a week in April. So far I'm leaning towards NYC, Chicago, or New Orleans.
Go to New Orleans before it's underwater. You'll regret it if it goes underwater before you go there.