The Unholy Three from '32 Kick-Up are a team of mob enforcers that follow this trope.
In Bronze Skin Inc. the Marvires family works as such, father Raymond leads both sons Otto and Bruno.
Sisters Snadhya'rune, Sarv'swati and Zala'ess Vel'Sharen from Drowtales, with Snadhya'rune as the apparent ringleader. They not only betrayed their mother and covered up her death for several decades but also were The Man Behind the Man for the demonic group who wrecked a huge chunk of their city as a cover up.
Emerald, Goristro, and Carval from Heartcore. Emerald and Goristro often but heads but tend to have shared leadership, since Carval is too dense and trigger happy to come up with a plan aside from "blow up all the things".
Umbria's little team in Our Little Adventure is shaping up this way. There's Umbria, Jason and Trevoricusthe wizard. Eventually subverted when Umbria's nasty treatment of Trevoricus and Jane's return eventually causes the Cowardly Lion to man-up, confront her over it and kick Umbria out of the group.
In addition to being a Comic Trio, Guy, Wayne, and Frank of Two Guys and Guy map well to this. Typically, Guy is the leader, and Wayne and Frank are the henchmen.
