It would be so nice if there was a single plugin which everyone used and I can plan in central ui.
1. Fire up uMatrix and globally block cookies for domain.
2. Fire up uBlock Origin to block element on page.
3. Self-Destructing Cookies for edge case motherlovers.
Remember, boys and girls and all that lieth betwixt and beyond: FIRST pillage THEN burn!
Note that this is not just about cookies but about any kind of stalking; browser fingerprinting, local storage, etc. It's more of a legal thing where you gave them permission to track you as opposed to a technical restriction, so a browser-based solution isn't really an equivalent (you can block their cookies but they'll still fingerprint your browser).
The problem is, a lot of them are badly implemented and load the trackers regardless, a lot are badly configured and consider Google/Shitbook as "necessary" cookies you can't opt-out of, and most of them are a pain to opt-out (with Yahoo/Oath - the cancer of the internet - in prime position - their GDPR flow is outright offensive).
Sadly until there's actual enforcement of the regulations things will stay that way.
As is, it is a complete disaster that accomplishes nothing positive.