WordPress Automatic plugin can import items from Envato marketplaces like ThemeForest and CodeCanyon. It can also auto-generate the affiliate links so you can make use of the affiliate program

1- If you didn’t already register for the affiliate program, apply here https://envato.com/market/affiliate-program/

2- once you are applied and approved, visit the affiliate dashboard here https://app.impact.com/secure/mediapartner/home/pview.ihtml

3- Click on the first ad

4- Click on the ad

5- Copy your affiliate URL and paste it to the plugin settings page

my personal link is https://1.envato.market/c/1287967/275988/4415