Yes, both Microsoft OneDrive for Business and CosmoLex offer a Free Trial.
Microsoft OneDrive for Business is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
CosmoLex is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Microsoft OneDrive for Business Starts at $1.99 whereas for CosmoLex Starts at $99/user/month when yearly.
Some top alternatives to Microsoft OneDrive for Business includes CollaborateCloud, Microsoft SharePoint, Onehub, ShareFile, Dropbox Business, FileCloud, Box, Citrix Content Collaboration, imDocShare and Microsoft 365.
Some top alternatives to CosmoLex includes and undefined.