Back in 2021 when I decided to buy a generator I spent way too long reading through OPC and RV threads on generators. My combined internet scraping yielded - if you want the best, buy a Honda followed by Yamaha (if you can find a Yamaha in the USA). Of the Chonda / Honda knock off's the best are Champion, followed closely by WEN. In general, the Chonda generators are operationally very similar but the part and assembly quality are vastly different. However, a lot of the problems seemed to be pretty early on, so if you bought no name brand X and ran it 20 hours, you likely would find out - is my take.
I ended up buying a WEN, because they were so much cheaper than a Champion, at least at that time, and was 1/3 of a Honda. I don't know if that correlates now, or if post pandemic things are different. I have had my WEN 3 years now. I start it every now and then, and used it once when the power went off, so its hardly tested. I did buy a number of spare parts to keep on hand - the servo controlled carb, both coils, and some other things.