Yes, both Grammarly Business and Content at Scale offer a Free Trial.
Grammarly Business is designed for Large Enterprises, Medium Business and Small Business.
Content at Scale is designed for Individuals, Freelancers, Medium Business and Small Business.
Pricing for Grammarly Business Starts at $12.50/User/Month when Billed Yearly whereas for Content at Scale Starts at $208/month when yearly.
Some top alternatives to Grammarly Business includes ProWritingAid, Linguix, WritingAssistant, Writer, PlagiarismSearch Checker, Ginger, Handywriter and PaperRater.
Some top alternatives to Content at Scale includes and undefined.