Python : Python for Everybody Specialization : https://www.coursera.org/specializations/python Java : Java Full Course : https://www.youtube.com/watch?v=hBh_CC5y8-s Go : Learn Go Programming : https://www.youtube.com/watch?v=YS4e4q9oBaU Machine learning : Machine Learning : https://www.coursera.org/learn/machine-learning