Perhaps your starting point could be to look at the big picture rather than individual ministries, unless you have already done this. The goal in this is to make sure you have a coordinated effort among all leaders toward the accomplishment of your church’s overall purpose and are living out God’s design for the church. If you click on the links in this paragraph, they will take you to the ministry manuals useful to this end.

You might also want to take a broad look at leadership. The Leadership Ministry Manual could help with that to enable them see how their various styles of leadership are needed to work toward that big picture.

As suggested in this post, the Ministry Manuals based on the content of this site could be helpful for some of the training for leaders of the different ministry areas of your church. They would provide a broad look at the various ministries. At some point, however, you would need to provide training that would be tailored to your specific ministries and leaders’ needs. Perhaps you would find useful resources to help with specific needs on the different ministry resource pages.

Remember that ministry leadership training is more than holding an instructional meeting. There are different elements to incorporate in the process of training people for ministry.

If providing training for ministry leaders of all ministries of your church is too overwhelming, start with the greatest areas of need. As you are able, provide training for other areas. Sometimes you just need to start small and build on that.