The Kivu Security Tracker (KST) has published a report on the new mapping of armed groups in eastern DRC. In total, they have identified 122 different armed groups, and they have published a description of each of them. The KST is a joint project of the Congo Research Group and Human Rights Watch.

https://kivusecurity.nyc3.digitaloceanspaces.com/reports/39/2021%20KST%20report%20EN.pdf

Click to access 2021%20KST%20report%20EN.pdf