Which iPods are compatible with the latest iTunes?

I need to buy an iPod but can't afford a new one, so I'll get a second hand one.  It's imperative that the latest version of iTunes is compatible with the iPod that I get. 

 

I've read that certain older iPods are not compatible and would like to know from which model onwards I'll be able to install the latest iTunes.

 

Many thanks

iMac, macOS High Sierra (10.13.1)