KYB for Micro-Businesses & Solo Operators - What's Working?

We're seeing a significant uptick in micro-businesses and solo operators looking to integrate our payment solutions. The challenge isn't just about scaling our KYC/KYB for volume, but specifically adapting it for these smaller entities. Traditional corporate documentation often doesn't apply cleanly, and we're finding a high friction rate with our current processes. Curious what others in the fintech space are leveraging for efficient, yet robust, KYB on this segment. Are there specific data points or automation strategies proving effective without breaking the bank or triggering endless manual reviews? We're trying to thread the needle between regulatory obligation and user experience here.