Product Recommendations

What's the best collaborative software for teams of any type?

Whether it's project management, a company putting together a budget, perhaps an Airtable but for everything? What's the best software for real time (or pseudo real time) collaboration / collective work towards a project/task. Are there any good ones?
Top recommendations
Plan A beautiful organizer that integrates into your calendar
Nuclino Part knowledge base, part collaboration space 🧠
Zenkit The project management tool that grows with you