“Whether a local jury (BuzzFeed’s headquarters is in NYC) could be found that would give Trump a fair trial is another matter.”
The person who files a lawsuit gets to pick the jurisdiction that will hear the case (which is why you always want to be the first to file for divorce if it is inevitable). Their libel was published worldwide via the internet, so the victims can claim they were harmed in just about any venue on the planet.
I would suggest Branson, Missouri.