The best alternatives to codeonthecob.com are Codecademy, Udemy, and Promyze. If these 3 options don't work for you, we've listed a few more alternatives below.
Codecademy, from Skillsoft, helps millions of learners create inspiring careers in technology through an interactive online platform and a growing catalog of courses, skill paths, and career paths.
Udemy is an online learning platform featuring 130,000 video courses taught by expert instructors. Take courses in anything from programming languages like Python and Java to personal development classes like design, drawing, writing and yoga. Join the millions of learners around the world who are mastering new skills, advancing their careers, and exploring new hobbies on Udemy.
Promyze helps you to easily define and share best coding practices with other developers in your company. Promyze works for any programming language, offers integration with IDE & Web-browsers plugins.
Based on Codeforces, Game of Codes is all about competitive programming, be it practicing, analyzing, learning, or even doing contests with your friends! This is full in one package for Codeforces lovers, and have 2000+ users registered and growing.