D&D General Categories of foes

[Blue]

For inspiration, you can always look at 3.Xe's creature types and subtypes... they had more creature types/subtypes than 5e has. I often look to 3e for inspiration and guidance when I look for stuff like that (deity domains for example- so many domains!).

I unfortunately gave away all of my 3ed and 3.5 books to friends who still played it. They needed the books, and I reclaimed shelf space.

Were there any that leaped out at you as a consolidated "foe" type?