Shopify Expert

I want to start a shopify business or businesses that stay within certain niches, e.g., products for dogs, green clothes, etc.

I'm new to shopify. And I need help with the business aspect of this type of business, e.g., whether to warehouse or drop-ship, whether to keep inventory or not, how to price, how to ship, how to charge for shipping, etc.

I would like a proposal for the how-to's of the business side of a niche e-commerce site. I am looking for someone with this business experience, who writes clearly, and who can act like a consultant down the line.