Taskade - Make lists, organize your thoughts, and be inspired to get things done. Taskade is a collaborative space for your tasks.
Team Today - The simplest way to manage and plan hybrid working, See who's working at home, in the office, offsite or on holiday. Keep track of office numbers, book hot desks and sync it all to Outlook, Teams or Google.
Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
Doodle Bot for Slack - Simple tool to find meeting times on Slack
Balloon - A drop box for your Dropbox
SlashMap - Office map plugin for Slack. Find coworkers & meeting rooms.