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: Monster
7. Aboleth
It's like they're aspiring to be Cthulhu, but lack the same type of the "otherness" that malevolent star monsters have.
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.
The Menagerie 