Bugbear 20
Gelatinous Cube 20
Gnoll 20
Goblin 20
Hobgoblin 21
Kobold 20
Lizard Man 20
Minotaur 20
Ogre 20
Orc 21
Owlbear 20
Shambling Mound 16
Troll 20
I prefer hobgoblins to orcs, just because they're more tactical/intelligent. I kinda wish they didn't come with the whole "goblinoid" baggage, but what're you going to do? Not a huge fan of semi-sentient plant life.