You can easily place a listing of Mods assigned to each forum underneath the forum title and description by making a small change in the ACP.
ACP -> Settings - Options -> Forum Listing Display Options -> Show Moderator Column -> enable Yes radio button and save
To add color to your Moderators (or any usergroup) you can use this mod...
https://vborg.vbsupport.ru/showthread.php?t=228607
And you'll end up with something like this.
May not be exactly what you're looking for but easy enough to implement and a place to start.