The best ones are the ones that provide a list to 100 partners and ask you to visit them to opt out. Usually just close the tab when I hit one of those.
Also the providers that appear to offer a even choice of accept all/reject all, except you realise that they've classified a second "legitimate interest" option for everything which the reject all doesn't cover (because that would be objecting, not rejecting)
I recently came across a website that makes the "Accept all cookies" button secondary and the the "accept necessary" primary. It's such an effort to actually press the primary button — I have been so trained by the completely disdainful behavior of the majority of websites.
Well I needed to visit the website due to an unfortunate event in meatspace - in no way hacker news related. So it seems there's definitely at least two sites which do it!