Slack is a messenger with Communities to foster teams/group of people communication

Twitter is a microblogging and social media platform

Telegram is a messanger with Channels that can containe posts, comments, impressions, messages and other content

Vero is a social media platform and mobile app company

TikTok is a short-video platform

Messenger that is Popular in the Chinese region, oftenly used by chinese healthcare industry proffessionals

Tumblr is a microblogging and social networking site

YouTube is a video-sharing platform