cornerback or safety
Benchwarmer.
RunningBack
Cheerleader.
Bench Warmer
Defensive tackle
high school?.. sounds like you should try tight end.
fullback?
LINEBACKER
If your fast: cornerback or wide receiver
either wide reciver or qb
fullback.
That would depend on whether you are 12 years old or 17 years old. If 12, maybe an offensive or defensive back position. If 17, I don't know of anything other than a place kicker.