In Primary, we can hit countries >25% of our NW. I now use Earthgraph and copy the list of ~50 countries from that NW up into Onenote. Then I copy 5 countries, manually sorted by DR=0 and lowest NW. That gives me a 5 row list of targets.

Lowest NW is most important if I'll be growing out of range. nw/land otherwise as h2orich says, but still small so I can get 5 hits in if possible

Before my military comes back from attacks I spy the first target and its allies and copy to One note. I can type in the calculations and Onenote does the math. I copy the attack results in too so I have an attack log for that day.