I'm a typical passenger, but I have a question that's difficult to answer:

Is there any way I can find out online, which private jets are parked overnight at
a nearby international airport? I live less than 10 miles from the airport, but I have no way to get the tail numbers, or anything.

Thanks

I look at the on ground reports on the FR24 site. It shows tail numbers on the ground and when they landed for a given airport.