I use Azure VSTS and am very happy with it. The only issue I have is that you can't export issues to a XLS file without plugins. However, I've used Jira previ

I use Azure VSTS and am very happy with it. The only issue I have is that you can't export issues to a XLS file without plugins. However, I've used Jira previously and it worked just fine for me and the team. YMMV