Free Data Science courses, one must go through -
Practical Reinforcement Learning
YSDA Natural Language Processing course
MIT Introduction to Deep Learning
Google Machine Learning Crash Course
https://www.coursera.org/collections/best-machine-learning-ai https://developers.google.com/machine-learning/crash-course/ml-intro https://deeplearning4j.org/docs/latest/deeplearning4j-beginners