Yes, both FogBugz and Wrike offer a Free Trial.
FogBugz is designed for Large Enterprises, Small Business and Medium Business.
Wrike is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
The starting price of Wrike begins at $0/user/month when monthly, while pricing details for FogBugz are unavailable.
Some top alternatives to FogBugz includes Freshbooks, Jira, Wrike, Smartsheet, Zoho Projects, GitScrum, Teamwork, ProjectManager.com, Backlog, Worksuite, Sprintly, Quick Base, ClickUp, Resource Guru, TestRail, Height, Yodiz and TaskBlast.
Some top alternatives to Wrike includes Quickbase , Smartsheet, ClickUp, Zoho Projects, Jira, Basecamp, Trello, TeamGantt, monday.com, Asana, Teamwork, ProjectManager.com, Microsoft Project and ProWorkflow.