Reclaim is the lightest-weight option if your main problem is calendar fragmentation in Google Workspace. It plugs into Google Calendar and starts protecting time blocks automatically: you tell it you want 2 hours of focus time every morning and it claims that space, then shifts it intelligently when meetings land. The free Lite plan covers the core use case for individuals without any payment.
The Starter tier at $8/user/month adds scheduling links and more granular task scheduling from connected task managers like Todoist, Asana, and Linear. Business at $12/user/month is where team coordination features appear. For people who don't need the team layer, Reclaim's free plan outperforms most paid alternatives for the specific problem of keeping meetings from consuming your entire day.