This past off-season a focus of mine has been improving the way we teach LB reads. Although there are a great number of teaching materials out there, these are some of the best one's I've found for free on YouTube and compiled on my YouTube Channel.
Hindsdale Central ILB Intro: https://www.youtube.com/watch?v=ZSaWYgpGGPE
Hindsdale Central ILB Part 2: https://www.youtube.com/watch?v=aOznjk_XLvU
Hindsdale Central ILB Part 3: https://www.youtube.com/watch?v=xqBnxQRuyJw
Hindsdale Central OLB: https://www.youtube.com/watch?v=ly77j-lz6Y8
44 Swarm Defense LB: https://www.youtube.com/watch?v=P0ifKJbAJBo
44 Swarm ILB: https://www.youtube.com/watch?v=nln9l2awZR8
44 Swarm OLB: https://www.youtube.com/watch?v=3ZHpPdRwQJM
In-At-Out: https://www.youtube.com/watch?v=u01Fs3709k4
Hindsdale Central ILB Part 2: https://www.youtube.com/watch?v=aOznjk_XLvU
Hindsdale Central ILB Part 3: https://www.youtube.com/watch?v=xqBnxQRuyJw
Hindsdale Central OLB: https://www.youtube.com/watch?v=ly77j-lz6Y8
44 Swarm Defense LB: https://www.youtube.com/watch?v=P0ifKJbAJBo
44 Swarm ILB: https://www.youtube.com/watch?v=nln9l2awZR8
44 Swarm OLB: https://www.youtube.com/watch?v=3ZHpPdRwQJM
In-At-Out: https://www.youtube.com/watch?v=u01Fs3709k4