Help me find interesting ways to use a whip.

So the whip is kind of garbage in 5E. It only does 1d4 damage, but has range and finesse. It also requires a class that can use martial weapons. So naturally I want to use it. What are some good classes or feats that can capitalize on it's unique properties?

I've been looking at fighters since they can use whips and they can use maneuvers which works well with a reach weapons, but rangers get a sort of horde attack option which every creature within 5ft (normal weapon distance, might be 10ft with whip) gets hit. I've also thought of Paladins which could use it as a 10ft smite, which is pretty awesome.