I'll be a pest and toss a couple your way

Traditional: You know what you never tend to see? A chubby minotaur! I mean, they hang around mazes, how can they stay so fit? *cue crummy standup routine ;p*

D&D: Beholder (because it's as traditional as RPG monsters go!), Mind Flayer/Illithid (does something smell fishy to you?), Gelatinous Cube (Everyone loves a good Gelatinous Cube!), Mimic (nice chest there, madam!)

https://www.furaffinity.net/view/32942812/ here yo

Well, Minotaurs are pretty good for this. A nice succubus would look good too

I mean, I always love gelatinous cubes and the fun ideas that can revolve around them.

Need more yeen folk. So gnolls!

https://www.furaffinity.net/view/32977127/ here yo

Yay!! <3

How about Buyon from Dragon Ball?
http://www.furaffinity.net/view/3520425/

How about me?
https://www.furaffinity.net/view/31699063/

have an interpretation https://www.furaffinity.net/view/32942490/

Late to the party, but how about a Rust Monster? Or a Mimic?

Late but orc girl?