Figmotion - Animation tooling right in Figma
Anima App - Design, get feedback, convert to code, publish, iterate.
Jitter - A simple animation tool on the web
Sketch Repo - Collection of resources for anyone who uses Sketch
Principle - Principle makes it easy to create animated and interactive user interface designs.
Figma - Team-based interface design, Figma lets you collaborate on designs in real time.