Ubersuggest does not have an affiliate program in place. There is no estimate of when it is going to start.
If you are interested in participating as an affiliate in the future you can fill out this form: https://forms.gle/YbTLFmmJ1zThVShh6.
Note that adding your information doesn't guarantee participation if and when the program kicks off.
What Is Affiliate Marketing?
Affiliate marketing (or Affiliate Program) is promoting other people’s products in return for a small commission for each sale. You’ve probably seen headings marked “affiliate link” or “sponsored post” on many of the websites you visit; or maybe you’ve already taken the first step and signed up to an affiliate network.
For more information on Affiliate marketing, visit What is Affiliate Marketing (and How to Get Started).