Best way to decouple character attack animations?

I'm currently making a 2D grid-based tactics game and I wanted to decouple the attack animation of my units from their monobehavior. I was thinking about having a default attack animation (which is just a tweening of the unit moving towards the enemy) and some custom attack animation for a few characters (like archers and mages, for example).

What would be the best way to do this? I thought about ScriptableObjects, but I have no idea what would be the best way to structure something like that.

Doing simple C# classes to handle this worked fine (see snippet below), but there's no way to set them in the inspector of my character prefabs.

My current Unit monobehavior:

 public class Unit : MonoBehaviour {
     // A bunch of attributes...
     public UnitAttackAnimation attackAnimation;
 }

My current implementation of an abstract UnitAttackAnimation:

 public abstract class UnitAttackAnimation{    
     public Unit unitSelf;
 
     public UnitAttackAnimation(Unit unit){
         this.unitSelf = unit;
     }
 
     public abstract IEnumerator BeforeDamage(Unit enemy);
     public abstract IEnumerator AfterDamage(Unit enemy);
 
 }

A concrete example of an attack animation:

 public class RegularAttackAnimation : UnitAttackAnimation{

 public RegularAttackAnimation(Unit unit) : base(unit){}

 public override IEnumerator BeforeDamage (Unit enemy){
     unitSelf.transform.DOMove(enemy.transform.position, 0.1f * GameManager.Instance.globalAnimationSpeed);
     yield return new WaitForSeconds(0.1f * GameManager.Instance.globalAnimationSpeed);
 }

     public override IEnumerator AfterDamage (Unit enemy){
         unitSelf.transform.DOMove (new Vector3 (unitSelf.x, unitSelf.y), 0.15f * GameManager.Instance.globalAnimationSpeed);
         yield return new WaitForSeconds(0.15f * GameManager.Instance.globalAnimationSpeed);
     }
 }