Gorck
Prince of Dorkness
Thinking out loud again:Huh... I feel like there should be some option, but most of the ones I'm thinking of encroach on the rogue concept.
Bonus action Dodge is too powerful. Spend an attack to disengage too rogue-like...
How about an ability that says something to the effect of "If you have made an attack this turn, attacks of opportunity have disadvantage against you". This is effectively a dodge against attacks of opportunity only, but it doesn't do anything for the fighter who is just running through the enemy. They have to have made an attack, then they get the bonus.
Overwhelm. Your relentless assault devestates your opponent's senses. When you make multiple attacks against a target on your turn, if you succesfully hit on each attack, you can Disengage as a Bonus action.