Lectora - Lectora Inspire is a robust tools and built-in eLearning and the responsive course designing feature.
Adobe Captivate Prime LMS - Adobe Captivate Prime LMS is easy to setup and helps in delivering engaging learning experiences in a personalized manner across devices.
Articulate Storyline - Articulate Storyline is a program that allows you to create interactive courses of any kind with templates and a simple system. There is a free trial offered so that you can determine whether you want to use the program further or not.
Udemy - Online Courses - Learn Anything, On Your Schedule
iSpring Suite - A comprehensive yet easy-to-use authoring tool for creating professional online courses like a pro – even if you’re a complete beginner.
Moodle - Moodle is the world's most popular learning management system. Start creating your online learning site in minutes!