If you want built in you can't beat the Onan ( it's part of Cummins ). Cummins/Onan has portables,1700,3200 & 4300.
They also have a 5500 watt portable. I have one, which is for sale.
I have the Hoda EU2000i as many others do & it's great! I do however have to buy a 2nd one next spring along with a parallel kit & thet will give me the 4000 watts I need to be able to run everything in the 5vr.
Clay
That's exactly what I'm going to do. Our first one just arrived today. I can't wait to get home and fire it up and just listen to it run.