Just roam around the Internet and enter some contests. They always require an email or phone number so they can sell it to similar businesses.
Enter to win a new car? Everyone who sells cars and ANYTHING related to them now knows you're interested in cars.
A free cruise? Congratulations! Every travel agency (yeah, I guess they actually still exist) knows that you're looking for deal on a getaway.
Literally apply for a free prequote on insurance. I got like 4 calls within the hour and a dozen emails in the same time. Shits insane.
Its all shit and giggles until they accidentallt win a car or cruise
Post it online publicly in a comment.
Send an email containing the addresses/numbers that you want spammed to inbox@mailinator.com . You can also check https://www.mailinator.com/v4/public/inboxes.jsp?to=inbox to verify that your mail was received.
Find a popular concert (eg, Taylor swift) and post tickets at face value on cragslist and list their number and email
Sign up for debt consolidation companies
post an ad on craigslist saying 'porn star looking to quickly get rid of ex's new pickup truck i just bought him. price is very negotiable.'
