New P&C Independent Agent Training (Lead Gen, Sales, Underwriting, Quoting, etc) which one is good?

Is there one solid training program that covers the whole spectrum a new agent actually needs — lead gen, sales process, underwriting basics, quoting workflow, etc — instead of piecing it together from ten different YouTube channels and courses?

Paid is fine if it's genuinely worth it. What did you use, and would you recommend it?