Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
Flow - Stop managing projects from your inbox.
Planyway - Visual project management for Jira and Trello: manage resources, build project roadmaps, use time tracking.
Notion - All-in-one workspace. One tool for your whole team. Write, plan, and get organized.
Corrello - Dashboards for agile teams using Trello
Cogency.io - Video Conferencing Solutions