Dual Core,Random aka MegaRan, Dale Chase, Dr. Awkward. All nerdcore but they still have chops. especially Dualcore and Random. I would say the deepest verse is dualcore’s Hear them talking off the album All the Things. Here’s a link: Hear Them Talking | Dual Core
Also check out some Canadian rappers they are keeping the old school golden age of rap alive
Kendrick Lamar is the only rapper I’ve listened to recently (except the guest rappers in songs). I really like the album, but I can’t decide if I love his raps all that much. Some really weak stuff, and then some really amazing stuff.