I've always had a curiosity about startups, but my experience is in lifestyle businesses.
I've never read a business book that did much more than provide vague conceptual ideas to ponder. Most are also very low signal to noise because the motivation of most business writers is to take a few insights and pad their way to a couple hundred pages.
That said, despite it's gimmicky framing device, The Art of Profitability by Adrian Slywotzky is a very useful book to think through different business models. https://www.amazon.com/Art-Profitability-Adrian-Slywotzky-ebook/dp/B000FA5TTM
Be wary of courses that promise to teach you how to start a particular business. Some good ones exist, but most often the success of the author is not reproducible (even for the author) which is why they have turned to selling books instead. Most of the domain knowledge of particular businesses is locked in the heads of those who are successful and making money from them.