To become an ISO 27001 consultant you do not need to have deep technical knowledge (although this knowledge, and related certifications like BCS, can provide a competitive edge).
Considering that, you have the following ISO 27001 career you can follow:
ISO 27001 Lead Implementer – this certification recognizes people who have competency in the ISO 27001 implementation process.
ISO 27001 Lead Auditor – this certification recognizes people who have competency in auditing an ISM S against ISO 27001 requirements and want to become certification auditors (and with this provides more confidence to an organization for being certified).
These articles will provide you a further explanation about ISO 27001 personnel certifications: