So you want to fantasy trade for a defenceman, do you? First, you need to know what teams might be motivated to move players or have the cap space to add players. (All data is from Cap Friendly, any mistakes are mine.)
Anaheim Ducks
2020-21 Cap Space right now: $2,920,001 on a roster of 18
Space per player to reach 23: $584,000
Players to sign: Ryan Miller if a goalie isn’t ready to be promoted, and some minor-league RFAs
With Erik Gudbranson and Ryan Kesler on IR and included in the cap calculation (but not the 18 on the roster) their situation isn’t really dire.