Omegle - Omegle is one of the most popular online chat website allowing user to communicate with anyone without registration.
Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
Bazoocam - Bazoocam is a popular chat website that rapidly connects you with strangers to chat.
Notion - All-in-one workspace. One tool for your whole team. Write, plan, and get organized.
Chatrandom - Chatrandom provides medium to users for having chat at random with different users around the globe.
Slack - A messaging app for teams who see through the Earth!