I like the Swing feat in Pathfinder 2nd ed. Let’s build in DnD 5e.
When you are engaged with two or more opponents, when you make a melee attack, you can make a second attack as part of the same action against a different opponent than the first. The second attack is made at disadvantage. When you gain additional attacks, you can make additional attacks from this fighting style for each attack you gain but the attacks form this style all occur at disadvantage.