Aside from the obvious adblockers, here are some useful tools:
Consent-O-Matic: Annoyed by those pesky cookie consent forms? This extension auto-completes and submits the form for you!
Dark reader (Chrome): Togglable dark-mode for all websites.
Clearly reader (Chrome): If you truly wish to return to the old days this extension will remove all unnecessary elements on a website and generate a clean document in the same browser window, leaving you with a simple text/image site to read.
No-Script Lite: Selectively disable java script from running. Bypass paywalls. Block autoplay videos and java script-based pop-ups.
The original No-Script is more customizable, but IMO its also harder to use. With the lite version, I spend less time faffing about with code and more time shitposting.