This will be rivamika OneShot

Levi x mad mikasa
Sick levi x mikasa
Chibi levi x mikasa
Teacher Levi x principle mikasa
Sad Levi x mikasa
Levi x bully mikasa (shes the big bully to Levi in middle school)
Levi x shy mikasa
Pervert levi x mikasa
And much more but still thinking about it