How to effectively search the Fediverse?

Hello all. Like many new users, I am a reddit refugee. Please forgive me if this isn't the best community for my question; I am still learning my way around here.

I am used to google searching "[THING] site:reddit.com" when I want to see the opinions of real people on a topic rather than the flood of clickbait articles you get nowadays with Google.

What is the best way to execute this type of search within the Fediverse rather than Reddit?