There are a few options, and only a few TBH.
If this DC is anything like Fangio, then he likes smaller, athletic, mobile ILBers. So with that in mind...
Malik Harrison - OSU - a bigger ILB at 6'-2 5/8" 246, but I think he is just mobile enough to work for the Rams, he's a thumper and can drop back into coverage a little.
Patrick Queen - LSU - 6'-1" 227. More like Littleton, he can go sideline to sideline and cover to boot. I wish he was stronger.
Kenneth Murray - OU - 6'-2" 235 lbs - Physical, decent movement skills, but sometimes he looks like he's not processing things as quickly as the play is moving and gets lost in the play.
I think at least 1 if not 2 of these guys make it to 52.
Zack Baun - Wisc. - I think he is a edge rusher only. He is smart enough to play inside, but his pass rush skill set would be wasted inside.
Josh Uche - Mich. - at 6'-1" 240 lbs, I'm not sure he is going to be big enough to be a 3 down edge in a 34, but he can flat out get after the QB. I might be tempted to play him inside early and then outside on passing downs and turn him loose.
Don't waste your time looking back, you're not going that way. - Ragnar Lothbrok