Onyx have 1 classic album(Baccdafuccup) and 2 near classic albums(All We Got Iz Us and Shut Em Down), they are notorious help making that whole screamin grimey style which is used by rappers today.
Lyrically they are awesome to, espically Sticky. Fredro can spit some fire aswell, but he gets overshadow by Sticky too much. Sonsee is the weakest member but even then he's still decent. But lyrically they are versitile and can rap about anything.
If anything you mean yelling about fighting and being thugs then yeah.