Zoom, Personal groups of up to 100 people can meet online for free.
Facebook Live: real-time from cellphones, computers and TV.
FaceTime: groups of up to 32 people available on iPhone, iPad, or iPod touch.
Facebook Messenger for groups of up to six. used on cellphones, tablets and computers.
Skype groups of up to 50 people used on computers, mobile devices, XBox One and smartwatches.
WhatsApp. Android and iOS platforms for up to four
Tango, for two people
Google Hangouts allows up to 10 people. video chat through Gmail account
Instagram. up to 6 people
Houseparty allows people to play video games on Android, iOS, MacOs and Chrome.