Not unless you're a NYT-level big player, and even those don't seem terribly keen on the idea. The fundamental problem is that advertisers want to know that their ads are being shown to actual people who are actually interested in what they're selling rather than bots run by fraudsters with fake websites full of fake traffic, which means tracking and attributing clickthrough, and that alone is enough to count as personally identifiable information for the purposes of laws like the GDPR. Contextual ads and not tracking users in order to select the ads doesn't solve this issue, it just reduces the profitability of advertising.