GPU for iMac 24" 2.66 - Early 2009

Hello

Im currently digging into a couple guides on iFixit.

I have this iMac stored and I am looking for a solution so I can give it to my daughter for school purposes.

- (iMac 24”, 2.66, early 2009) -

https://everymac.com/systems/apple/imac/...

Mine has, obviously, a damaged GPU.

I have sent it to a repair shop a few years ago and it worked for a while then it stopped.

My question for you all…In case the GPU is badly damaged and out of repair, which GPU can I alternatively look for to put back on this iMac?

Thank you for your help.

Ricardo

- from Portugal