Yes, both Google Drive and Dropbox Business offer a Free Trial.
Google Drive is designed for Large Enterprises, Medium Business and Small Business.
Dropbox Business is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Google Drive Starts at $8/User/Month whereas for Dropbox Business Starts at $12.50/Month.
Some top alternatives to Google Drive includes CollaborateCloud, Odrive, CloudFiles, Dropbox Business, Zoho WorkDrive, FileCloud, Microsoft OneDrive for Business, Dropbox Professional, DocUp and OpenDrive.
Some top alternatives to Dropbox Business includes CollaborateCloud, Google Workspace, Odrive, Sync.com, Google Drive, FileCloud, Box, Microsoft OneDrive for Business, Dropbox Professional and BluSync.