Dunno if this is off topic, mods feel free to delete if it is, but I picked up a laptop that's a couple years old that needs a fan replacement. I've done a little googling but it's not clear which part(s) I need, where I could buy it, and if it would even be cost-effective to replace anyway.

I can post pics/more info in a couple hours, but in the meantime could anyone point me in the right direction where I can buy laptop fans or a guide on figuring out which fan I would need? I'm not worried about voiding any warranty or anything like that

Edit: the model number is 15-ek0018ca if that helps!