Unbiased reporting has never existed in the history of the US press, and likely never will. The very decision to publish or not publish story inserts a little bias. The press can't possibly cover everything, so they have to decide what should be printed, and it's not always a straightforward decision.

40 years ago, there were several nationally recognized publications (NYT, WaPo, WSJ, etc.), and all of them had a bias. NYT editorial leaned left, WSJ editorial leaned right, and everyone knew this. The political leaning was baked into brand of the publication.

This all changed in the internet era. The collapse of print advertising decimated the industry. Publications became more incentivized to publish questionable reporting because clickbaity headlines brought more ad traffic. The Trump campaign was covered ad nauseum because having his name in a headline significantly increased traffic to an article, and thus revenue.

The online advertising model is fundamentally incompatible with the kind of journalism you're looking for, but we as a society are hooked on it because it means we don't have to pay for the content.