The best $150 you can spend as a product person looking to grow: Lenny’s Newsletter (and the extended Lennyverse)
Lenny Rachitsky has, over the past 5+ years built what I consider to be the best community and content around "Product" writ large - covering various aspects of the craft of product management, strategies for product growth and finally, and often most interesting to me, valuable perspectives on the psychology of being a product manager/product leader. It all started with a great subscription newsletter and a subscriber-only Slack community. The subscription only costs $150 per year and if being