Business Consultant (Home Remodeling)

Thought the Money Board would be the best option here to ask. What are some good business consultation websites out there, specifically for a home remodel business specializing in kitchens and bathrooms? I understand that might be a little too specific, but what I am in search of is any sort of resources I could use to learn more about growing a sole proprietorship into something more than what it operates as now. Would appreciate any and all of y’all’s recommendations. Thanks!