Start the Entrepreneur Roadmap
Tools designed to help you build an investable, tractionable business designed to succeed. Each step has numerous resources for you to access. Books, service providers, specialists etc.
Since you are growing a business that will have employees, Steps 1, 2, 3, 4, and 5 will be important. The others will be more valuable as you mature - good to look at, though.
Do Self Assessments
These will help you understand you as an entrepreneur (personality, grit, skills, Emotional Intelligence, and more) as well as your team and your business model.
I suggest you get each member of your team to work through the Assessments and you can work through the leadership one as well. You will also need to get into the Entrepreneur Maturity model for your whole company.