Getting Targeted Mail Offers

What is a sure fire of getting these targeted SUBs in the mail for Amex? I have two Chase cards (Sapphire Reserve and Freedom Unlimited) and a Discover card I never use, so I don’t even know how I would enter Amex’s “radar”. Is it a crapshoot? How can I best position myself to get these SUBs in the mail?

Thank you, all!