Gathering tools for virtual meetings and human contact here.

Video chat without signup or login:

Good for communicating with technophobic people.

Video Meetings, Video Conferencing and Screen Sharing
Easy video meetings with no login or downloads. Video conferencing with screen sharing, recording and much more.
Jitsi Meet
Join a WebRTC video conference powered by the Jitsi Videobridge
Tico | Where better conversation happens
The considerate messenger. Chat with whom you care about always at the best moments and times

Serendipitous voice chat:

Good for not getting lonely.

Dialup
A voice-chat app reviving the magic of talking on the phone. Connect serendipitously to the people you want to stay in touch with. Available on iOS and Android.

Ambient presence video chat:

Not for technophobes. Requires a login, but lets you very casually ping one or more of your friends for a group chat. Works on iOS, Android, MacOS and Chrome.

Houseparty
Group video chat to help you and your friends be together when you’re not together.

Virtual event and conference platforms:

Good for bringing people shared experiences and maintaining a semblance of life as usual.

Homepage 2020
Video Conferencing, Web Conferencing, Webinars, Screen Sharing
Zoom is the leader in modern enterprise video communications, with an easy, reliable cloud platform for video and audio conferencing, chat, and webinars across mobile, desktop, and room systems. Zoom Rooms is the original software-based conference room solution used around the world in board, confer…

Zoom is best used in conjunction with:

Slido - Audience Interaction Made Easy
Slido is the ultimate Q&A and polling platform for meetings and events. It offers interactive Q&A, live polls and insights about your audience.

Also

Good luck out there, stay safe, and let me know if there's more I could add.