The PM Interview - Practice PM Interview Questions (w/ timer).
The Product Management guide - A book on how to create and ship products that people love
Pramp for Product Managers - Practice product management mock interviews with other PMs
Xobin - Most Comprehesive Pre-Employment skills testing and Psychometric Assessment Platform.
Myskillwall - The best tool to prepare your job interview
Intercom on Product Management - The ultimate resource for aspiring product managers