Clinton 2016 + AZ + FL. MI and PA should be targeted as well, but not as much as FL and AZ. Someone like Harris likely isn't going to win WI IMO.
I understand the thinking behind targeting FL and AZ, but why exactly will they be easier to win when PA, WI, and MI have been much more reliable for Democrats over the years.
Do you really believe this election was a re-alignment, because I'm not entirely convinced yet.
The Sunbelt is where the Democrats' future lies. I don't see Trump doing much better with minority voters and "Clinton Republicans" in 2020 than in 2016, but he has a lot of room to grow in the Rust Belt, especially if the Democratic candidate doesn't connect with voters there (and also the Philly suburbs, WOW counties, etc.). But yeah, MI and PA should obviously be targeted. OH and IA would be a waste of time and money IMO.