I’ve been using DuckDuckGo’s bang for years ! With that, from my adress bar or Alfred’s search bar, I can just do some quick research on any website I want.
If I want to look up something on reddit, I can just type « best ui framework !reddit » and it’s going to open on reddit. If I want to look up something on Amazon (i know Alex, sorry), I just type « toilet rolls !azf » and it’s going to open Amazon.fr with my research opened. It’s really practical and prevent me from having to use the actual DuckDuckGo engine which is… not really good.