Pose Warehouse - The Easiest Multi-Project Pose Tool!
UPDATED FOR BLENDER 5.2
Added a visual thumbnail display to all poses in the list, so you can know exactly what is what just by the visual,
Added: Onion skin, 3D Onion skin to help animate has all the features you need, including Opactiy , Frame after , Frame before and so on!
Updated for blender 5+ New features on the way for all addons!