What eGPU's are compatible with iMac mid-2010 in order to run multiple displays
I would like to connect 4-6 (if possible, and at least more than 1 external display) displays to iMac mid-2010. Scouring the web I see that I would need an external GPU (eGPU) and looks like macOS High Sierra would support that, although I'm not sure if the hardware (iMac mid-2010) makes a difference. Would anyone know if this is possible, and if yes, would you have any recommendations on the eGPU and graphics card?
Many people suggest to get a eGPU with Thunderbolt but the iMac mid-2010 doesn't have Thunderbolt and it has FireWire instead, not sure if that will work.
Also, the 4-6 external displays will be used to display data, thus it's not meant for high intensity processing like gaming or video editing.
Any help would be greatly appreciated!
iMac, macOS High Sierra (10.13.3), mid-2010