Here are nine free university courses that cover relevant topics for coding interview

MIT OpenCourseWare - Introduction to Computer Science and Programming (Python)

Stanford University - Algorithms: Design and Analysi

Princeton University - Algorithms Part I and Part II

Harvard University - CS50's Introduction to Computer Science

University of California, San Diego - Algorithmic Toolbox

University of Washington - Data Structures and Performance

University of California, Irvine - Divide and Conquer, Sorting and Searching, and Randomized Algorithm

University of Michigan - Programming for Everybody (Getting Started with Python)

University of California, San Diego - Graph Search, Shortest Paths, and Data Structure