Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.

EssentialPIM - EssentialPIM is a free Personal Information Manager that keeps up with the times and lets you manage appointments, tasks, notes, contacts, password entries and email messages across multiple devices and cloud applications.

Microsoft Teams - Microsoft Teams provides the enterprise-level security, compliance and management features you expect from Office 365, including broad support for compliance standards, and eDiscovery and legal hold for channels, chats, and files.

Todo.txt - Track your tasks and projects in a plain text file, todo.txt. A todo.

Creativity 365 - Cross-device content creation suite

Task Coach - Task Coach is a simple open source todo manager to keep track of personal tasks and todo lists.