When choosing a version control system, consider the following:
Integration with Jaspersoft Studio: Ensure that the version control system you choose can integrate well with Jaspersoft Studio, even if it requires some manual setup or the use of intermediary tools.
Ease of Use: Since your team is small, picking a system that's easy to learn and use will help minimize disruptions and get everyone up to speed quickly.
Scalability: While you're a small team now, consider whether you might grow in the future and if the system can scale with you.
Before implementing any system, it might be worthwhile to do a trial run with a small, non-critical project to ensure that the version control system meets your needs and works well with your existing tools and workflows.