According to 538's Atlas of Redistricting, the most pro-D gerrymander would have all 8 districts favor Democrats, while the most pro-R gerrymander would have 4 Republican-leaning districts. If the map were drawn to be proportionally partisan and keep as many counties intact as possible, it would have 5 D-leaning districts and 3 R-leaning districts (with one of them being a swing district).
I personally would take the 5D-3R map in exchange for other states squeezing in more D-leaning districts.
Now that they are assured of controlling the process in 2021, I really like the idea of Maryland/Virginia Dems doing a "we'll pass an independent redistricting reform constitutional amendment if at least 2 large-ish Republican trifecta states that require legislative action for a constitutional referendum do the same". Looking at you GA/TX/TN/SC.
