Jamboard - Interactive Business Whiteboard | G Suite
Mural - MURAL is a visual collaboration workspace for modern teams.
StandupScreen for Trello - Turn a magnetic whiteboard into an interactive Trello board
Sketchboard.io - Visual Remote Teamwork. Solve problems and create ideas on endless whiteboard with your teammates by sketching.
Witeboard - A real-time whiteboard for your team. No signups required.
BeeCanvas - Realtime & Interactive Whiteboard. Collect and organize everything in one place.