Yes, both Hightail and Microsoft Power BI offer a Free Trial.
Hightail is designed for Large Enterprises, Medium Business and Small Business.
Microsoft Power BI is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Hightail Starts at $12/Month whereas for Microsoft Power BI Starts at $4,995/Month.
Some top alternatives to Hightail includes ShareFile, Dropbox Business, Microsoft OneDrive for Business, Dropbox Professional, GoProof, Ziflow, Workgroups DaVinci Proof, WebProof, Dropbox Paper and Proofing.
Some top alternatives to Microsoft Power BI includes Google Drive, Tableau, IBM Cognos Analytics, Dundas BI, SAS Business Intelligence, Clear Analytics, SAP BusinessObjects BI, ibi Analytics Platform, Narrative BI and Microsoft Power BI Desktop.