https://www.linkedin.com/feed/update/urn:li:activity:6926442005560532992/ Nothing beats this post.
https://techwithkp.com/machine-coding-round-what-is-it-how-to-crack-it/
https://workat.tech/machine-coding/article/how-to-practice-for-machine-coding-kp0oj3sw2jca