Where is a good place to buy a replacement screen for a laptop?

I almost bought one online but then I came across a website that was all about how the one I was on was a fake. So now I am a little scared to buy online unless I know it’s legit. Any good website suggestions? I’ve looked on Amazon and I think it’s called newegg… something like that… I’ve looked at the HP website but I can’t find a place to buy only a screen.