Working as a group to remember and reflect upon recent projects is a useful exercise, not only to hear from others what went well, but also to see if there are common traits to work you enjoy.
This is a great exercise to do in a group with your team.
Download the worksheet, and complete it together - list out the projects which you've worked on together as a team
Again, as a team, and for each project, list anything significant you remember about it - was it hard work, was the challenge interesting, was it long or short?
Then, individually, look at the projects which you enjoyed. Are there any commonalities in the projects you've picked?