If you look at the separation Foundry have made between what is an ogre and what is an orc I find some of them questionable.
Some of the ogres are on the small side, and some of the supposed orcs are quite large.
Fustabrook for example is an orc apparently, but would make a good unit champion.
The Drogathog the Vigilant is a good standard bearer option, and there are musicians as well.