Not saying anything against Honda, Yamaha or Champion, but Harbor Freight has this: https://www.harborfreight.com/engines-generators/inverter-generators/3500-watt-super-quiet-inverter-generator-63584.html
We've had one of their 4kw peak regular ones (a whopping $300!) for four years and it's worked flawlessly (and isn't much louder than the two Yamaha's I had previously). I just got tired of managing two instead of one. Yes, I've either got to use an engine hoist or get help lifting it onto or out of my truck, but I only do that a couple of times a year. If this thing breaks, that inverter one will be next.