working with templates is good but their numbers should be increase i suggest working on the chat messenger boost its ui lovely landing page though!! ;)
I like working with its panel
Conceptboard - Instant Whiteboards for Teams & Projects
Witeboard - A real-time whiteboard for your team. No signups required.
Whiteboard Fox - Simple Online Whiteboard
Miro - Scalable, secure, cross-device and enterprise-ready team collaboration tool for distributed teams. Join 2M+ users & 8000+ teams from around the world.
OpenBoard - The OpenBoard software is an interactive white board software.
Jamboard - Interactive Business Whiteboard | G Suite