Lasfit LEDs are great option for all around the vehicle (switchback, cargo, rear, reverse light, etc.)

Link on MTC: https://www.mavericktruckclub.com/forum/threads/lasfit-switchback-turn-signal-cargo-light-3rd-brake-light.10625/

For dash cam, I went with the Viofo A139 Pro - great 3 channel dash cam.

Product link: https://www.amazon.com/dp/B0BV2FRBCS