Varanus Acanthurus Acanthurus/Acanthurus Brachyurus
Ridge Tailed Monitors red/yellow
Varanus Tristis Tristis-Black Headed Monitor
Varanus Tristis Orientalis-Freckled Monitor
Varanus Caudolineatus-Line Tailed Pygmy Monitor
Varanus Brevicauda-Short Tailed Pygmy Monitor
Varanus Glauerti-Kimberly Rock Monitor
Varanus Pilbarensis-Pilbara Rock Monitor
Varanus Storri Storri-Storr's Monitor
These are just a few, many more stay under 3'. The best is to see what is available to you, make a choice and then research the needs of the monitor before you bring it home. I have ackies, both red and yellow, storrs and a black headed monitor. The Storrs is a tiny little guy, with a stl of around 12", my ackies are various sizes, the largest is a male, around 24" and my black head is also around 24-25" stl, but has a more sleek look than my ackies. My yellow ackies have the best personality as far as interacting with me. I do not own Timors, but from what I hear about them, most are quite shy, so if you want a monitor you will get to see a lot, probably not a good choice. Good luck!
Pam
