I would recommend buying an older monitor that has a max resolution of 1084X768 which is the current maximum for the indivision AGA. Wide screen monitors will either give you "black bars" on the sides when in the correct aspect ratio (4:3) or give you that lame stretched out look when filling the whole screen (16:9)
Also be careful of monitors that are also TV sets. My A1200 with indivision AGA will not work on either of our giant LCD TV sets via VGA port and had to be fiddled with endlessly to work on my small Dell LCD monitor / TV.
