I was using calendly and now I am testing the google calendar schedule feature. It is not as good as calendly, but I like that it is already in the google calendar interface :)
Popular tools for effective collaboration with remote teams include:
Communication: Slack, Microsoft Teams
Project Mangement: Trello, Asana
Document Collaboration: Google Workspace, Microsoft 365
Video Conferancing: Zoom, Microsoft Teams
File Sharing: Dropbox, Box
Collaborative Editing: Notion, Quip
Since my team and I are working on a tool that will be helpful for remote team collaboration, called SalesSuite Scheduler, we are using it. I'm hoping to launch it soon here!