Ring4 Meeting - Dead simple video conferencing - free, in browser
Worklife Slackbot - Your personal meeting assistant, in Slack
Stork.ai - AI-Based Collaboration for Hybrid Teams. Rich media messaging, advanced video and voice conferencing, auto-transcribing and screen sharing. Serendipitous meetings at the water-cooler with your human and AI teammates.
Meetingbird - Powerful meeting scheduling and notes — right in your calendar
openmeet - Account free video conferencing with a rooms component that lets you use VC within a physical meeting room. The server can also be hosted in your own cloud for extra privacy/security.
RemoteStandups - Join others and organise remote standup meetings together