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Lots of ED ads, lots of "How to retire" ads, those weird ads with retouched old men with six-pack abs, the stupid intermittent fasting ads, etc.
I do get the occasional run of Spanish-language ads. Not sure why.
The most powerful signals now are not demographics and search history, but location, transactions and automatic content recognition (ACR).
Transactions is pretty straightforward, your bank and/or payment networks sell your data to brokers at a merchant level. Many retailers sell your data at a SKU level.
Location is less visible. There are various levels of granularity of location tracking and reporting built into many SDKs that are included in just about any mobile app you download, and that data is sold.
Automated content recognition (ACR) is the craziest. The actual contents of your screen- the Instagram post, the TV show you are watching, etc (and its underlying transcript) are analyzed by the app or the TV, and sold often in real time to data brokers with such efficiency that you can be viewing the photo of the new Land Rover your friend just bought and posted, to your very next swipe being an ad for a Land Rover
I remember a podcast about this. Maybe Reply All. But I cannot find it anymore.