Readings about “engineered happiness”

I'm searching for books/texts, fictional or not, about engineering happiness. That is: people are kept happy by some outer force. examples:

Fahrenheit 451 – happiness is never having to think about the complext and difficult. books makes people think unpleasant thoughts and get into conflict, so they are forbidden.

"The Circle" – happiness is 24/7 entertainment and connection with the world. safety is knowing what everyone is doing at any moment.

"Souvenir" by Philips Nick. The flawed free meets the unstoppable force of colonisation in galaxy where technology and thought must be shared to avoid conflict and discomfort.

and then ofc "Brave New World" etc. Any tips? 🙂