You can sign up for a Free 45 Day Trial of MoodleCloud and Restore the courses that you have created to the Trial Site.
You can sign up for our Free 45 Trial on our plan page here: https://moodle.com/moodlecloud/
You visit each individual course and click on Settings, then Backup to create the Backup.
Then go to your MoodleCloud Free Trial - go to Site Admin / Courses/ Restore Course to upload that file and Restore it.
You can learn more about backup and restore here:
I hope that helps.