Free Courses
https://freecourses.github.io/
Freecourses is a platform which offers a collection of free course links for various development languages and frameworks. You will find every course which is listed here is either free or trial version for learning. So enjoy the content.
Contribute
You can also contribute to the project. Check below different ways for contributions please check in CONTRIBUTING.md
Via Google forms
You can add more courses to the project by filling out the form
Link: https://goo.gl/forms/S3AJKJlYPj9MqQj93
Via Github
For contribution please check CONTRIBUTING.md