Unstoppable Running plays and formations!!!

Alright, there are some runs and running formations that just cant be stopped rather its blitzed or anything. A running play that is really effective is off tackle outta strong close in hou and no playbooks...do you guys know of any more run plays that are just unstoppable if set right(slide protect and motion if needed).
please give me up the middle runs, not tosses, sweeps etc. thank u all!

umm i-form with the two tight ends! power-o all day. i use alot of motion