Python : Python For Everybody(Programming for Everybody (Getting Started with Python) : https://www.coursera.org/learn/python
Web Developement : The Complete 2020 Web Development Course - Build 15 Projects : https://www.udemy.com/course/complete-web-development-course/
Machine learning : Machine Learning : https://www.coursera.org/learn/machine-learning
Blockchain Technology : Introduction to Blockchain Technologies : https://www.coursera.org/learn/introduction-blockchain-technologies \