Linebacker or defensive end
Anyone who ever really played knows that your coach will assign positions for you on offense and defense. You don't choose nor do strangers on the internet who have never seen you play.
Seem like a safety spot would be fun for you. Safety's get all the big hits and are a lot of times unblocked. I played safety and I found myself making a lot of plays I didn't really deserve, just because of lazy blockers on the other team, and I just was quick enough to get there. Plus you may get an interception every now and then. Definitely keep it in mind!
I would say if I were you I would play safety, because that is a fun position to play. You are the last line of defense between the offensive player and the endzone. You have to be fast and you will get to have a lot of big hits on the ball carriers.
Cornerback because I met some football players at a restaurant. that are cornerbacks. It's a good football position