Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.
Google Groups - Google Groups allows you to create and participate in online forums and email-based groups with a rich experience for community conversations.
Creativity 365 - Cross-device content creation suite
Membee - Membee is web-based membership management software.
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.
Galette - Galette is a membership management web application towards non profit organizations.