Apple Macbooks are the obvious answer. The Air models don't even have fans.

Or you might take your PC and tune its processor power plans to be less aggressive, or limit TDP settings. That said, my previous Thinkpad E14 wasn't that loud even with high loads, without tweaking anything.

But also, consider my Asus gaming laptop, G14. It's relatively silent but on default settings hard crashes about once an hour due to overheating. Perhaps loud fans are preferable to that.