Looking for desktop traffic of USA

I need Web traffic of Usa (Only Desktop ). Consumption capacity upto 500k users/day. But must be real and genuine. No Fake traffic will be entertained. We need same traffic as like google ads provides. Because we have tried working on few ad networks. And We always end up at Zero Leads. So We need Real/genuine traffic where in no any specified niche is preferred. And there should be a age targeting wherein 35+ age would be preferred.