Doodle

Doodle is best known for the group poll. You propose several times, send the link, and each person ticks the slots they can make. Nobody needs an account to vote, which matters when you are scheduling with people outside your company, and the organizer picks the winning time when the answers are in.

It also offers booking pages for one-to-one meetings and sign-up sheets for things like volunteer shifts or office hours. Connecting a calendar lets it show your own conflicts while you choose times and add the final meeting automatically.

It works with Google, Outlook and iCloud calendars and with common video tools. The free version shows ads and limits some features, so check what you need before you send polls on behalf of a team.