Defensive schemes

I'm trying to figure out what defense to run, what defenses have yall been successful with

I run Nickel 24. Gives me two SubLBs to user and good plays in both zone and man. 
 

I use Over Storm Brave a lot as far as specific plays go

Dollar is very popular

I run something that most don’t. Nickel 24 out of Pats. Heavy on cover 3 and 4 in which I usually man up the slots in some combination of man and flat or no flat just manning up the slots/TE/HB or whoever. I rarely run straight man and almost never blitz. Usually I‘ll change my defense, specifically the manning up part, based on where my opponent is beating me. If someone is under center and posing a good running and passing game, I’ll go to 4-3 Even 6-1, running cover 3, cover 4 or Sam Will Blitz based on their scheme. 6-1 is also my desperation defense, where I blitz the hell out of people with man or cover 4 on the back. 4-3 Even 6-1 Cover 2 is my go to inside the 10 defense. Finally, if my opponent is heavy on the run, comes out in any I-form set, or has an AKA X-Factor back I go to Strong Slant (or something like that, it blitzes 1 LB, slants the line and has C3 on the back) out of 4-3 Odd to limit the run game. The combination these works well and I usually hold my opponents to low point totals. My defensive mentality is bend but don’t break as I’ll often give up a good amount of yards, but I have a LOT of red zone stops.