Unique Villager Idea.
They don’t require any drop off and gather continuously, BUT they are slower than a Teutonic Knight, BUT you can also make cute little wagons for them to garrison inside that move at 1.5 speed and offer some protection.
I think this would work well with Hussite variant of HRE. Also for this Hussite variant they will have a separate military wagon that boosts the attack speed of nearby FLAIL infantry as well as allow hand cannoneers to fire will garrisoned inside.
Wagons and Flails baby. It’s literally the only thing we are missing.