Yes, both Front and Parabola offer a Free Trial.
Front is designed for Large Enterprises, Medium Business and Small Business.
Parabola is designed for Medium Business and Small Business.
Pricing for Front Starts at $19/User/Month whereas for Parabola Starts at $80/month.
Some top alternatives to Front includes Zendesk Support, Zoho Desk, Tidio Helpdesk, Freshservice, Freshdesk, Deskero, Teamwork Desk, SeamlessDesk, HelpDesk, Jitbit Helpdesk, Rhino Support, ReadyDesk, Sitehelpdesk, LabiDesk, Help Desk Premier and BoldDesk.
Some top alternatives to Parabola includes CircleCI, Etlworks Integrator, Matillion ETL, Fivetran, ETL Framework, Datagaps ETL Validator, Etleap, Optimus Mine, ETLrobot and Alloy Automation.