Linebackers
Ray-Ray Armstrong (SFO): If for nothing else, grab the guy just for the myriad team names you could come up with based on having this guy rostered. If that doesn't do it for you, four straight games in double digits (in typical IDP scoring) with a 31-point outburst last week should. The guy has never really been a force but he is putting up solid numbers so far this season with Reuben Foster sidelined. Should he remain out or get hurt again or heck if Navorro Bowman were to miss time again, Armstrong may just continue this streak. Worth a stash in all formats just based on historical production from his position and the injury concerns of both Bowman and Foster.
Dylan Cole (HOU): Once Brian Cushing was popped for PEDs, Cole became a player of interest. I'll admit I wasn't all that psyched on his skills but he did fill up the box score nicely on Sunday. Not sure if that game is a sign of things to come or just an anomaly but in larger formats, outbursts like that should be noticed and if you can stash him away, he could eventually pan out. He has a couple of solid guys ahead of him in Zach Cunningham and Benardrick McKinney but any injury to either of them and Cole could really matter.
Adarius Glanton (TBB): Remember folks, this is a wide net we're casting out for deep sleepers. Here's a super-speculative add that you don't need to waste cash on at this point, but pay notice. He's had two straight weeks of double digits and backs up one of the highest-producing linebackers in the game. Yes, if Kwon Alexander were to get hurt they have talented guys that could step in at MLB, but if Glanton continues to perform well in spot duty, you'd think they'd give him a shot too.
Others to Watch: Martrell Spaight (WAS) and James Burgess (CLE)
Defensive Linemen
Cassius Marsh (NEP): Another deep dive guy here. Marsh's snap count dipped last week (down from 62 the previous two weeks to 18), but still managed 3 solos. Trey Flowers is a talented end who is really the guy you'd like to own, but maybe Marsh isn't a bad investment for those in real deep formats.
Michael Brockers (STL): Wait, is Brockers turning into Aaron Donald? He's certainly outproducing him, and perhaps he has Donald (who repeatedly sees double-teams) to thank for his production. Either way, Brockers is a nice add in leagues that start tackles independent of ends.
Jurrell Casey (TEN): Casey is talented, make no bones about it. He sees a ton of snaps and so far he's producing some decent tackle numbers for an end that typically gets 5+ sacks a season. The Titans' defensive scheme is rather friendly to players like Casey so if you're starved at defensive line, he's worthy of an add at this point.
Others to Watch: Trevon Coley (CLE) and David Bass (NYJ)
Defensive Backs
TreDavious White (BUF): If you're in a league that splits off corners and safeties, go get this guy if he's not on a roster. He is the real deal. He is absolutely stuffing the box score with meaningful, fantasy-productive stats.
Chris Conte (TBB): What's this guy gotta do to get some love? Sure, he's not flashy and will likely never put up 20+ points in a week but figure his floor is 10-12 points with 18-20 point upside. As a DB2 in larger formats you gotta love that kind of production. Rookie Justin Evans is talented and waiting in the wings but for now Conte is producing consistent fantasy points.
A.J. Bouye (JAC): Bouye was impressive for the Texans and was a key free agent add for the Jags this off-season. With the talented Jalen Ramsey on the other side, Bouye continues to get chances at putting up meaningful fantasy points. The tackle numbers may be sporadic but he'll consistently get opportunities at pass defenses (which could easily turn into interceptions... or heck, pick-sixes).
Others to Watch: Tre Boston (SDC) and Tashaun Gipson (JAC)