NIST Special Publication 800-53 is a comprehensive catalog of security and privacy controls originally written for US federal information systems.
Controls are organized into families — Access Control, Audit and Accountability, Incident Response, and more — and grouped into baselines (Low, Moderate, High impact) based on how much harm a breach would cause. It's far more granular than NIST CSF, which is why it underpins FedRAMP authorizations and is often used as the technical backbone for organizations that need to demonstrate detailed, auditable control implementation.
Control families
NIST
NIST SP 800-53 Rev. 5