Consulting Q & A:
https://wiki.consultingquest.com/category/consultants/
Process Street Consulting Resources:
https://www.process.st/small-business-resources/
David A Fields Consulting Coach:
https://www.davidafields.com/
Laura Burford's Consulting Guide:
https://www.laurasconsultingguide.com/
Michael Zipursky's Consulting Success:
https://www.consultingsuccess.com/
The Complete Guide to Starting a Consulting Business (from HubSpot):
https://blog.hubspot.com/sales/consulting