I've been using PostBuilder (used to be called gramspacer) for several months now and I use it almost every single work day. PostBuilder makes it super convenient for organizing and planning content for my Instagram pages and the founder is very responsive if you have questions or if there's ever an issue. I definitely recommend them!
MotionDen - Free online animated video maker
Drake Shake - Shake to add Drake to any photo
Flixier - Flixier Pro is an online video editor that speeds up your workflow with 1 minute rendering on any device, streamlined communication and collaboration features and plenty of cloud storage.
PicMerger - Merge photos side by side, create beautiful photo collages, customize your content with built-in photo editing tools, and more
Adobe Premiere Rush CC - Create and share online videos anywhere 🎬
Instagram Line Break - Simple clean line breaks for your Instagram captions