Find the best free version tool for the job

Online kanban style lists
4 Project management 9 Task management 6 Kanban board 4 Small projects 2 free version
Video Conferencing, Web Conferencing, Webinars, Screen Sharing
8 Video Calls 4 Communication 2 Meeting software 2 free version
Subtask - Project Management Software for Teams
11 Project management 5 Task management 4 Kanban board 4 Project timeline 3 Effort/value matrix 3 Calendar 3 Small projects 1 free version