Cloud giants seem interesting in that they're depicted as focused rather heavily on society, appearance, and culture. Which is generally not the case, in my experience, with most 'giant-kin' races.
Tag: Bestiary
6. Gnoll
Gnolls generally fit a specific role in my mind. And that is antagonistic humanoids for low level parties. They have a nice flavor because they strike me as more organized than Orcs and Goblins, and particularly less used. I love a good orc, but aggressive dog men are pretty cool too.
5. Elephant
Writing ideas for the elephant was similar to writing ones for the bison, in that I found that I don't really know much about them...
4. Chimera
There was only the one Chimera in myth, after all. So that's something to consider when planning an encounter, or an adventure. "Is this beast one of a kind?" Slaying the Chimera was Bellerophon's greatest feat, after all.
2. Bison
Concepts of the American frontier are usually what I associate with Bison/Buffalo, and I think that's kind of reflected in the ideas I presented.
The Menagerie 