Select your ad group.
Targeting – Targeting – previously Target & bid.
Select What they’re actively researching or planning (In-market and custom intent) – Custom intent audiences: auto-created – New audiences or previously used.
Google Ads shows you a new or a previously used audience to choose from.
Add the most relevant audiences and keywords to your business.
Watch it on YouTube (Larger version)
Extract from my Book ‘Making Google Ads Work’.