When you highlight an enemy unit, its movement and Attack Range will be displayed. Press ZR to display the danger radius of all enemies. Using this feature will allow you to plan where to position your units, and even bait enemies to move to your preferred location.
When positioning your units within the enemy’s danger radius, you’ll be able to see which units they’ll be attacking. They’ll usually prioritize “softer” units such as spellcasters and low-level/weaker units. Fortunately, you can see these predictive enemy attack lines before confirming your movement during your phase so you can still adjust your strategy as necessary.