The best alternatives to Scripts Organizer are PageLines, Iceberg Editor, and CodeKit. If these 3 options don't work for you, we've listed a few more alternatives below.
Iceberg is a beautiful & entirely customizable markdown editor for crafting articles in WordPress. Iceberg leverages the best of WordPress, and the best of the new block editor, while getting out of your way–allowing you to focus on publishing your next post.
CodeKit is the one and only plugin that provides integrated IDE, supporting wide range of languages and powerful code management interface in the marketplace.