I am looking to learn the 3-4 odd defensive playbook, what plays should I start with?

For context I run the Pats D playbook. Also my primary formations are nickel 24dbl and 6-1. I am wanting to learn 3-4 odd as running 6-1 as become boring and also everyone uses it so I would like to learn something new and fresh. Any basic plays/concepts or audible structures that would be great to initially start with would be welcomed .