MailChimp - MailChimp is the best way to design, send, and share email newsletters.
Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.
SendOut - Affordable email marketing for bloggers and influencers
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.
rasa.io - Get more from your email list.
RingCentral Video - Live life unlimited. Free video meetings and team messaging in one app that works the way you do.