Here's a link to an Argis map. You can turn on the layer for current districts and the select the election turnout for 2020.
Here is a link to the 2020 vote count by precinct. Using the Argis map, I'd like up the District 1 precincts and then compare it to the the argis map to see which ones are in district 1. Too bad the file is a image based PDF and not a CSV.
Any case, it's doable.
Personally, I'm most interested in getting District 1 turnout to increase.
You could still mark one candidate in Portland's RCV.