Mixed Signal Class B Controller Board Design

We have a controller for our system that uses two processor modules (CM4 and STM32/Nucleo Board) and has onboard DC/DC modules, BLDC Motor Drivers and FETs, Stepper Motor Drivers and FETs, Digital I/O to communicate with sensors and actuators, and K-Type Thermocouple sensors. We are looking for a very experienced EE that is an expert in achieving FCC Class B. We have a current design which is very close to getting Class A, but getting to Class B will require a board respin. The system is a highly automated countertop appliance in the food services industry.